Blue
Wavelength	440–490nm
Common connotations
masculinity,cold,sadness,confidence,harmony,water
Color coordinates
Hex triplet	#0000FF
sRGBB (r,g,b)	(0, 0, 255)
HSV (h,s,v)	(240°, 100%, 100%)
CIELChuv (L,C,h)	(32, 131, 266°)
Source	X11
B: Normalized to [0–255] (byte)

Varieties of the colorblue may differ inhue,chroma (also called saturation, intensity, or colorfulness), orlightness (or value, tone, orbrightness), or in two or three of these qualities. Variations in value are also calledtints and shades, a tint being a blue or other hue mixed with white, a shade being mixed with black. A large selection of these colors is shown below.

Blue (Computer web color)
Red, green, and bluelights, representing the three basicadditive primary colours of the RGB colour system, red, green, and blue
Color coordinates
Hex triplet	#0000FF
sRGBB (r,g,b)	(0, 0, 255)
HSV (h,s,v)	(240°, 100%, 100%)
CIELChuv (L,C,h)	(32, 131, 266°)
Source	X11 color names[1] HTML/CSS[2]
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

The colour defined asblue in theRGB color model,X11 blue, is the mostchromatic (colourful) blue that can be reproduced on a computer screen, and is the colour named blue inX11. It is one of the threeprimary colors used in theRGB colour space, along withred andgreen. The three additive primaries in the RGB colour system are the three colours oflight chosen such as to provide the maximumgamut of colours that are capable of being represented on acomputer ortelevision set.

This colour is also called color wheel blue. It is at 240 degrees on theHSV/HSL colour wheel, also known as theRGB colour wheel. It is aspectral colour which lies at, or near, the short-wavelength end of the traditional "blue" and possibly was classified as "indigo" byNewton.^[3] Itscomplementary colour isyellow.

Blue (CMYK) (pigment blue)
Cyan,magenta, andyellow are the threesubtractive primary colors used inprinting
Color coordinates
Hex triplet	#333399
sRGBB (r,g,b)	(51, 51, 153)
HSV (h,s,v)	(240°, 67%, 60%)
CIELChuv (L,C,h)	(28, 73, 266°)
Source	[4]
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

The color defined asblue in theCMYK color system used inprinting, also known aspigment blue, is the tone of blue that is achieved by mixing process (printer's)cyan and process (printer's)magenta in equal proportions.

The purpose of the CMYK color system is to provide the maximum possiblegamut of color reproducible in printing by the use of only threeprimaries.

The color indicated is only approximate as the colors of printing inks may vary.

Blue (Pantone)
Color coordinates
Hex triplet	#0018A8
sRGBB (r,g,b)	(0, 24, 168)
HSV (h,s,v)	(231°, 100%, 66%)
CIELChuv (L,C,h)	(22, 82, 265°)
Source	[5]
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

Blue (Pantone) is the color that is calledblue inPantone.

The source of this color is the "Pantone Textile Paper eXtended (TPX)" color list, color # Blue C, EC, HC, M, PC, U, or UP—Blue.^[5]

Blue (NCS)
Approximations within the sRGB gamut to the primary colors of theNatural Color System, a model based on theopponent process theory of color vision
Color coordinates
Hex triplet	#0087BD
sRGBB (r,g,b)	(0, 135, 189)
HSV (h,s,v)	(197°, 100%, 74%)
CIELChuv (L,C,h)	(53, 65, 237°)
Source	sRGB approximation toNCS 2060-B[6]
ISCC–NBS descriptor	Moderate blue
B: Normalized to [0–255] (byte)

The color defined asblue in the NCS orNatural Color System is anazure-like color. The Natural Color System is a color system based on the fourunique hues orpsychological primary colors red, yellow, green, and blue. The NCS is based on theopponent process theory of vision.

The "Natural Color System" is widely used inScandinavia.

NCS Blue can only be displayed approximately on a computer screen, as thesespectral colors have been adjusted to fit into the sRGB gamut. In the 21st century, this hue is classified as a variation of azure that is on the border ofcyan.

Blue (Munsell)
The hues of theMunsell color system, at varying values, and maximum chroma to stay in the sRGB gamut
Color coordinates
Hex triplet	#00DEFF
sRGBB (r,g,b)	(0, 222, 255)
HSV (h,s,v)	(188°, 100%, 100%)
CIELChuv (L,C,h)	(82, 73, 215°)
Source	[7]
ISCC–NBS descriptor	Strong greenish blue
B: Normalized to [0–255] (byte)

TheMunsell color system is acolor space that specifiescolors based on three color dimensions:hue, value (lightness), andchroma (colorfulness), spaced uniformly (in terms ofhuman perception) in three dimensions in the Munsellcolor solid. In order for all the colors to be spaced uniformly, it was found necessary to use a color wheel with five, non-arbitrary, equally spaced primary colors: red, yellow, green, blue, and purple.

The color of the sample is the mostchromatic (colorful) blue in the sRGB gamut that falls in the hue of 5B (primary blue) in the Munsell color space. In the 21st century, this blue is classified as an intermediate between azure andcyan.

The termtint and shade is used in its technical sense as used incolor theory.

In this section, the term 'tint' usually refers to ablueish color mixed withwhite or lightgray. The termshade is used in its technical sense as used in color theory, meaning a blueish color mixed withblack or darkgray.

The colors arranged in order of their value (brightness) (V in theHSV code), the brighter colors toward the top and the darker colors toward the bottom.

Periwinkle
Periwinkle flowers
Color coordinates
Hex triplet	#CCCCFF
sRGBB (r,g,b)	(204, 204, 255)
HSV (h,s,v)	(240°, 20%, 100%)
CIELChuv (L,C,h)	(84, 42, 266°)
Source	Maerz and Paul
ISCC–NBS descriptor	Very light purplish blue
B: Normalized to [0–255] (byte)

Periwinkle (alsoperiwinkle blue orlavender blue) is a mixture of white, blue, and red. It is named after thePeriwinkle flower and is also commonly referred to as a tone of light blue.

Neon Blue
Color coordinates
Hex triplet	#4D4DFF
sRGBB (r,g,b)	(77, 77, 255)
HSV (h,s,v)	(240°, 70%, 100%)
CIELChuv (L,C,h)	(44, 131, 266°)
Source	[8]
ISCC–NBS descriptor	Vivid purplish blue
B: Normalized to [0–255] (byte)

Neon blue is a vivid purplish blue.

Bluebonnet
Bluebonnet flowers
Color coordinates
Hex triplet	#1C1CF0
sRGBB (r,g,b)	(28, 28, 240)
HSV (h,s,v)	(240°, 88%, 94%)
CIELChuv (L,C,h)	(33, 124, 266°)
Source	[9]
B: Normalized to [0–255] (byte)

Bluebonnet is a bright shade of blue with a slight violet tinge. It represents the color ofbluebonnet flowers, which are part of thelupin family. The bluebonnet is thestate flower ofTexas.

Twin Blue
Color coordinates
Hex triplet	#BEDBED
sRGBB (r,g,b)	(190, 219, 237)
HSV (h,s,v)	(203°, 20%, 93%)
CIELChuv (L,C,h)	(86, 24, 228°)
Source	[10]
B: Normalized to [0–255] (byte)

Twin Blue is so named since its HEX color code spells out "BED" twice. The color is also recognized for bearing close semblance to the lightpastel shade ofcyan common on bed sheets.

Smalt
Color coordinates
Hex triplet	#003399
sRGBB (r,g,b)	(0, 51, 153)
HSV (h,s,v)	(220°, 100%, 60%)
CIELChuv (L,C,h)	(26, 74, 261°)
Source	[[iColorpalette]
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

Smalt has also been known under other names such asazurblau, Bohemian Blue, Dutch Ultramarine, enamel blue, Isenburg Blue. It was also known by many as Saxon Blue since the primary sources of cobalt ore used to make it were located in Saxony.

Smalt predatesThénard's Blue by several to many hundreds of years, which turned up as a result of the French government's famed search for a synthetic version of Lapis Lazuli. The Napoleonic administration appointed Louis-Jacques Thénard to find a substitute for Lapis Lazuli, and instead he foundCobalt Blue.

Savoy blue
Color coordinates
Hex triplet	#4B61D1
sRGBB (r,g,b)	(75, 97, 209)
HSV (h,s,v)	(230°, 64%, 82%)
CIELChuv (L,C,h)	(45, 94, 262°)
Source	[11]
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

Savoy blue, orsavoy azure, is ashade of saturationblue betweenpeacock blue andperiwinkle, lighter than peacock blue.^[12] It owes its name to its being the color of theHouse of Savoy, aruling dynasty in Italy from 1861 to 1946.

Having become a national color with theunification of Italy (1861), its use continued even after thebirth of the Italian Republic (1946) with the name "Italian blue". An Italian-blue border was inserted on the edge of thePresidential Standard of Italy and the use of the blue scarf for theItalian Armed Forces'officers, for the presidents of theItalian provinces during the official ceremonies and of the blue jersey forItalian national sports teams it was also maintained in the Republican era.

Medium Blue
Color coordinates
Hex triplet	#0000CD
sRGBB (r,g,b)	(0, 0, 205)
HSV (h,s,v)	(240°, 100%, 80%)
CIELChuv (L,C,h)	(25, 101, 266°)
Source	X11
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

The web colormedium blue is a shade of the standard (h = 240°) blue.

Process Blue C
Color coordinates
Hex triplet	#0085CA
sRGBB (r,g,b)	(0, 133, 202)
HSV (h,s,v)	(200°, 100%, 79%)
CIELChuv (L,C,h)	(53, 75, 244°)
Source	[Unsourced]
B: Normalized to [0–255] (byte)

Process blue is a Pantone-defined shade^[13] used by the football team theCarolina Panthers and is sometimes consequently called "Carolina blue" or "Panther blue".^[14]

Liberty
Color coordinates
Hex triplet	#545AA7
sRGBB (r,g,b)	(84, 90, 167)
HSV (h,s,v)	(236°, 50%, 65%)
CIELChuv (L,C,h)	(41, 64, 264°)
Source	[15][16]
ISCC–NBS descriptor	Strong blue
B: Normalized to [0–255] (byte)

Liberty is a strong blue color.

The first recorded use ofliberty as a color name in English was in 1918.^[17]

Egyptian Blue
Color coordinates
Hex triplet	#1034A6
sRGBB (r,g,b)	(16, 52, 166)
HSV (h,s,v)	(226°, 90%, 65%)
CIELChuv (L,C,h)	(28, 82, 263°)
Source	[18]
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

Egyptian blue is apigment that was used inAncient Egypt.

International Klein Blue
Color coordinates
Hex triplet	#002FA7
sRGBB (r,g,b)	(0, 47, 167)
HSV (h,s,v)	(223°, 100%, 65%)
CIELChuv (L,C,h)	(26, 83, 263°)
Source	[19]
B: Normalized to [0–255] (byte)

International Klein Blue (IKB) is a deepblue hue first mixed by the FrenchartistYves Klein. IKB's visual impact comes from its heavy reliance onultramarine, as well as Klein's often thick and textured application ofpaint tocanvas. Klein never patented the color, only submitting aSoleau envelope without progressing to the patent stage.^[20]

Ultramarine
Ultramarinepigment
Color coordinates
Hex triplet	#120A8F
sRGBB (r,g,b)	(18, 10, 143)
HSV (h,s,v)	(244°, 93%, 56%)
CIELChuv (L,C,h)	(17, 65, 266°)
Source	Xona Games[21] and ColorHexa[22]
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

Ultramarine is a bluepigment in use sincemedieval times. It was originally derived fromlapis lazuli, a bright blue mineral.

Dark Blue
Color coordinates
Hex triplet	#00008B
sRGBB (r,g,b)	(0, 0, 139)
HSV (h,s,v)	(240°, 100%, 55%)
CIELChuv (L,C,h)	(15, 60, 266°)
Source	X11
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

Dark blue is a shade of the standard (h = 240°) blue.

Picotee Blue
Color coordinates
Hex triplet	#2E2787
sRGBB (r,g,b)	(46, 39, 135)
HSV (h,s,v)	(244°, 71%, 53%)
CIELChuv (L,C,h)	(23, 63, 267°)
Source	[23]
B: Normalized to [0–255] (byte)

Picotee blue represents the color of thepicotee flower. It is a deep shade ofindigo, almost resemblingSt. Patrick's blue.

Navy Blue
Color coordinates
Hex triplet	#000080
sRGBB (r,g,b)	(0, 0, 128)
HSV (h,s,v)	(240°, 100%, 50%)
CIELChuv (L,C,h)	(13, 52, 266°)
Source	HTML/CSS[24]
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

Navy blue is a shade of the standard (h = 240°) blue.Navy blue got its name from the dark blue (contrasted with white) worn by sailors in theRoyal Navy since 1748 (originally calledmarine blue before 1840) and subsequently adopted by othernavies around theworld.

The first recorded use ofnavy blue as a color name in English was in 1840.^[25]

Midnight Blue
Color coordinates
Hex triplet	#191970
sRGBB (r,g,b)	(25, 25, 112)
HSV (h,s,v)	(240°, 78%, 44%)
CIELChuv (L,C,h)	(16, 49, 266°)
Source	X11
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

Midnight blue is anX11web color. This color was originally calledmidnight. The first recorded use ofmidnight as a color name in English was in 1915.^[26]

Independence
Color coordinates
Hex triplet	#4C516D
sRGBB (r,g,b)	(76, 81, 109)
HSV (h,s,v)	(231°, 30%, 43%)
CIELChuv (L,C,h)	(35, 23, 260°)
Source	[27]
ISCC–NBS descriptor	Dark blue
B: Normalized to [0–255] (byte)

Independence is a dark blue color.

The first recorded use ofindependence as a color name in English was in 1927.^[28]

Cool black (PMS 295)
Color coordinates
Hex triplet	#002E63
sRGBB (r,g,b)	(0, 46, 99)
HSV (h,s,v)	(212°, 100%, 39%)
CIELChuv (L,C,h)	(19, 41, 255°)
Source	[Unsourced]
ISCC–NBS descriptor	Very dark blue
B: Normalized to [0–255] (byte)

Cool black is a dark shade ofblue. It is one of thePantone colors.^[29]

Robin Egg Blue
Color coordinates
Hex triplet	#96DED1
sRGBB (r,g,b)	(150, 222, 209)
HSV (h,s,v)	(169°, 32%, 87%)
CIELChuv (L,C,h)	(84, 35, 175°)
Source	[30]
ISCC–NBS descriptor	Very Light Greenish Blue
B: Normalized to [0–255] (byte)

Robin Egg Blue is a pale shade ofblue-green, whose name comes from the color of the eggs of the American robin, a bird native to North America whose egg pigment, called biliverdin, is responsible for this color.

Space Cadet
Color coordinates
Hex triplet	#1E2952
sRGBB (r,g,b)	(30, 41, 82)
HSV (h,s,v)	(227°, 63%, 32%)
CIELChuv (L,C,h)	(18, 29, 260°)
Source	[31]
ISCC–NBS descriptor	Dark blue
B: Normalized to [0–255] (byte)

Space cadet is one of the colors on theResene Color List,^[32] a color list popular in Australia and New Zealand. The color "space cadet" was formulated in 2007.

Baby blue
Color coordinates
Hex triplet	#89CFF0
sRGBB (r,g,b)	(137, 207, 240)
HSV (h,s,v)	(199°, 43%, 94%)
CIELChuv (L,C,h)	(80, 48, 227°)
Source	Maerz & Paul (1930)[33](p 93, pl 35, nr E2)[34]
ISCC–NBS descriptor	Very light greenish blue
B: Normalized to [0–255] (byte)

Baby blue is known as one of thepastel colors.

The first recorded use ofbaby blue as a color name in English was in 1892.^{[33](p 190)}

Light blue
Color coordinates
Hex triplet	#ADD8E6
sRGBB (r,g,b)	(173, 216, 230)
HSV (h,s,v)	(195°, 25%, 90%)
CIELChuv (L,C,h)	(84, 28, 216°)
Source	X11
ISCC–NBS descriptor	Very light greenish blue
B: Normalized to [0–255] (byte)

Theweb colorlight blue is part of the X11 color system, with a hue code of 194. Variations of this color are known assky blue,baby blue, or angel blue.

The first recorded use of "light blue" as a color term in English is in 1915.^[35]

Powder Blue
Color coordinates
Hex triplet	#B0E0E6
sRGBB (r,g,b)	(176, 224, 230)
HSV (h,s,v)	(187°, 23%, 90%)
CIELChuv (L,C,h)	(86, 26, 202°)
Source	X11[24]
ISCC–NBS descriptor	Very light bluish green
B: Normalized to [0–255] (byte)

Powder blue is a light bluish green.

The first recorded use ofpowder blue as a color name in English was in 1774.^[36] It is aweb color.

Uranian Blue
Uranus with clouds
Color coordinates
Hex triplet	#AFDBF5
sRGBB (r,g,b)	(175, 219, 245)
HSV (h,s,v)	(202°, 29%, 96%)
CIELChuv (L,C,h)	(85, 35, 229°)
Source	[37][38][39]
ISCC–NBS descriptor	Very light greenish blue
B: Normalized to [0–255] (byte)

Uranian blue is a light greenish blue, the color ofUranus, which was named afterUranus, theprimordial god of thesky and theheavens inGreek mythology.

Argentinian Blue
Flag of Argentina
Color coordinates
Hex triplet	#6CB4EE
sRGBB (r,g,b)	(108, 180, 238)
HSV (h,s,v)	(207°, 55%, 93%)
CIELChuv (L,C,h)	(71, 65, 241°)
Source	[Unsourced]
ISCC–NBS descriptor	Light blue
B: Normalized to [0–255] (byte)

The web colorArgentinian blue is a light azure color seen on the national flag of Argentina.

Ruddy Blue
MaleRuddy duck
Color coordinates
Hex triplet	#76ABDF
sRGBB (r,g,b)	(118, 171, 223)
HSV (h,s,v)	(210°, 47%, 87%)
CIELChuv (L,C,h)	(68, 56, 243°)
Source	[11]
ISCC–NBS descriptor	Brilliant blue
B: Normalized to [0–255] (byte)

Ruddy blue represents the coloring of the beak of theruddy duck.

Celtic Blue
Colour coordinates
Hex triplet	#246BCE
sRGBB (r,g,b)	(36, 107, 206)
HSV (h,s,v)	(215°, 83%, 81%)
CIELChuv (L,C,h)	(46, 91, 255°)
Source	[40]
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

Celtic blue is a shade of blue, also known asglas celtig in Welsh, orgorm ceilteach in both theIrish language and inScottish Gaelic. Julius Caesar reported (inCommentarii de Bello Gallico) that the Britanni used to colour their bodies blue with vitrum, a word that means primarily "glass", but also the domestic name for the "woad" (Isatis tinctoria), besides theGaulish loanwordglastum (fromProto-Celtic *glastos "green"). The connection seems to be that both glass and the woad are "water-like" (lat. vitrum is fromProto-Indo-European *wed-ro- "water-like").

Spanish Blue
Color coordinates
Hex triplet	#0070B8
sRGBB (r,g,b)	(0, 112, 184)
HSV (h,s,v)	(203°, 100%, 72%)
CIELChuv (L,C,h)	(46, 73, 248°)
Source	Gallego and Sanz[41]
ISCC–NBS descriptor	Strong blue
B: Normalized to [0–255] (byte)

Spanish blue is the color that is calledAzul (the Spanish word for "blue") in theGuía de coloraciones (Guide to colorations) by Rosa Gallego and Juan Carlos Sanz, a color dictionary published in 2005 that is widely popular in theHispanophone realm.

Bleu de France
Color coordinates
Hex triplet	#318CE7
sRGBB (r,g,b)	(49, 140, 231)
HSV (h,s,v)	(210°, 79%, 91%)
CIELChuv (L,C,h)	(57, 90, 250°)
Source	[42]
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

Bleu de France is a vivid blue color that has been associated inheraldry with theKings of France since the 12th century.

Delft Blue
Color coordinates
Hex triplet	#1F305E
sRGBB (r,g,b)	(31, 48, 94)
HSV (h,s,v)	(224°, 67%, 37%)
CIELChuv (L,C,h)	(21, 35, 258°)
Source	[43]
ISCC–NBS descriptor	Dark blue
B: Normalized to [0–255] (byte)

Delft blue is a dark blue color.

The name is derived from the Dutch potteryDelftware, also known simply as "Delft Blue".

Duck Blue
Color coordinates
Hex triplet	#007791
sRGBB (r,g,b)	(0, 119, 145)
HSV (h,s,v)	(191°, 100%, 57%)
CIELChuv (L,C,h)	(46, 44, 222°)
Source	[44]
ISCC–NBS descriptor	Moderate greenish blue
B: Normalized to [0–255] (byte)

Duck blue is a moderate greenish blue.

Resolution Blue
Color coordinates
Hex triplet	#002387
sRGBB (r,g,b)	(0, 35, 135)
HSV (h,s,v)	(224°, 100%, 53%)
CIELChuv (L,C,h)	(20, 64, 263°)
Source	[45]
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

Resolution blue is a vivid blue color.

This color name first came into use in 2001 when it was formulated as one of the colors on theXona.com Color List.

Polynesian Blue
Color coordinates
Hex triplet	#224C98
sRGBB (r,g,b)	(34, 76, 152)
HSV (h,s,v)	(219°, 78%, 60%)
CIELChuv (L,C,h)	(34, 66, 257°)
Source	[46]
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

Polynesian blue is a dark blue color, almost navy.

Chefchaouen Blue
Color coordinates
Hex triplet	#468FEA
sRGBB (r,g,b)	(70, 143, 234)
HSV (h,s,v)	(213°, 70%, 92%)
CIELChuv (L,C,h)	(59, 89, 252°)
Source	[47]
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

Moroccan blue (alsoChefchaouen blue) is a vivid blue color.

Sapphire
Sapphire gemstone
Color coordinates
Hex triplet	#082567
sRGBB (r,g,b)	(8, 37, 103)
HSV (h,s,v)	(222°, 92%, 40%)
CIELChuv (L,C,h)	(17, 45, 260°)
Source	[48]
ISCC–NBS descriptor	Deep blue
B: Normalized to [0–255] (byte)

Sapphire is a deep shade of navy blue, based on the color of an averagesapphire gemstone. However, sapphire gems can also be pink, yellow, or orange.

Fluorescent blue
Indian 50 rupee note, obverse
Color coordinates
Hex triplet	#15F4EE
sRGBB (r,g,b)	(21, 244, 238)
HSV (h,s,v)	(178°, 91%, 96%)
CIELChuv (L,C,h)	(87, 68, 188°)
Source	[Unsourced]
ISCC–NBS descriptor	Brilliant bluish green
B: Normalized to [0–255] (byte)

Fluorescent blue is a shade of blue that is radiant based onfluorescence. This is the main color on theIndian 50-rupee note.

Teal blue
Color coordinates
Hex triplet	#367588
sRGBB (r,g,b)	(54, 117, 136)
HSV (h,s,v)	(194°, 60%, 53%)
CIELChuv (L,C,h)	(46, 34, 220°)
Source	[49]
ISCC–NBS descriptor	Moderate greenish blue
B: Normalized to [0–255] (byte)

Teal blue is a medium tone of teal with more blue.

The first recorded use ofteal blue as a color name in English was in 1927.^[50]

Azure Blue
Color coordinates
Hex triplet	#0080FF
sRGBB (r,g,b)	(0, 128, 255)
HSV (h,s,v)	(210°, 100%, 100%)
CIELChuv (L,C,h)	(55, 117, 255°)
Source	[51][52]
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

Azure (/ˈæʒər,ˈeɪʒər/AZH-ər,AY-zhər,UK also/ˈæzjʊər,ˈeɪzjʊər/AZ-ure,AY-zure)^[53][54][55] is a variation of blue that is often described as the color of thesky on a clear day.

On theRGB color wheel, "azure" (hexadecimal #0080FF) is defined as the color at 210 degrees, i.e., thehue halfway betweenblue andcyan. In theRGB color model, used to create all the colors on a television or computer screen, azure is created by adding a little green light to blue light. Thecomplementary color of azure isorange.

Azure mist
Color coordinates
Hex triplet	#F0FFFF
sRGBB (r,g,b)	(240, 255, 255)
HSV (h,s,v)	(180°, 6%, 100%)
CIELChuv (L,C,h)	(99, 8, 192°)
Source	X11
ISCC–NBS descriptor	Very pale cyan
B: Normalized to [0–255] (byte)

In theX11 color system which became a standard for earlyweb colors, azure is depicted as a pale cyan or whitish cyan rather than a shade of azure.

In an artistic context, this color could also be calledazure mist orcyan mist.

In this section, the termshade is used in its technical sense as used incolor theory, meaning ablueish color mixed withblack or darkgray. The colors arranged in order of their value (brightness) (V in theHSV code), the brighter colors toward the top and the darker colors toward the bottom.

Alice Blue
Color coordinates
Hex triplet	#F0F8FF
sRGBB (r,g,b)	(240, 248, 255)
HSV (h,s,v)	(208°, 6%, 100%)
CIELChuv (L,C,h)	(97, 8, 233°)
Source	X11[56]
ISCC–NBS descriptor	Greenish white
B: Normalized to [0–255] (byte)

The web colorAlice blue is a pale tint of azure.

Uranian Blue
Color coordinates
Hex triplet	#AFDBF5
sRGBB (r,g,b)	(175, 219, 245)
HSV (h,s,v)	(202°, 29%, 96%)
CIELChuv (L,C,h)	(85, 35, 229°)
Source	[37]
ISCC–NBS descriptor	Very light greenish blue
B: Normalized to [0–255] (byte)

Uranian blue is a light greenish blue, the color ofUranus.

Light blue
Color coordinates
Hex triplet	#ADD8E6
sRGBB (r,g,b)	(173, 216, 230)
HSV (h,s,v)	(195°, 25%, 90%)
CIELChuv (L,C,h)	(84, 28, 216°)
Source	X11
ISCC–NBS descriptor	Very light greenish blue
B: Normalized to [0–255] (byte)

Theweb colorlight blue is part of the X11 color system, with a hue code of 194. This color is closer tocyan than to blue. Variations of this color are known assky blue,baby blue, or angel blue.

The first recorded use of "light blue" as a color term in English is in the year 1915.^[35]

Columbia Blue
Color coordinates
Hex triplet	#B9D9EB
sRGBB (r,g,b)	(185, 217, 235)
HSV (h,s,v)	(202°, 21%, 92%)
CIELChuv (L,C,h)	(85, 25, 226°)
Source	Columbia University[57]
ISCC–NBS descriptor	Very light greenish blue
B: Normalized to [0–255] (byte)

Columbia blue is a medium light tone of azure named afterColumbia University. The typical Columbia blue is defined byPantone Columbia Blue (PANTONE 290).^[57]

Cloudy Blue
Color coordinates
Hex triplet	#9BBCD8
sRGBB (r,g,b)	(155, 188, 216)
HSV (h,s,v)	(208°, 28%, 85%)
CIELChuv (L,C,h)	(75, 32, 236°)
Source	[58]
ISCC–NBS descriptor	Light greenish blue
B: Normalized to [0–255] (byte)

Cloudy blue is a light, opaque tone of azure.

Baby blue
Color coordinates
Hex triplet	#89CFF0
sRGBB (r,g,b)	(137, 207, 240)
HSV (h,s,v)	(199°, 43%, 94%)
CIELChuv (L,C,h)	(80, 48, 227°)
Source	Maerz and Paul[34]
ISCC–NBS descriptor	Very light greenish blue
B: Normalized to [0–255] (byte)

Baby blue is known as one of thepastel colors. With a hue code of 199, this color is a tone ofazure.

This color is associated with baby boys inWestern culture.

The first recorded use ofbaby blue as a color name inEnglish was in 1892.^[59]

Havana Blue
Color coordinates
Hex triplet	#A5DBE5
sRGBB (r,g,b)	(165, 219, 229)
HSV (h,s,v)	(189°, 28%, 90%)
CIELChuv (L,C,h)	(84, 30, 207°)
Source	https://icolorpalette.com/color/a5dbe5
ISCC–NBS descriptor	Very light greenish blue
B: Normalized to [0–255] (byte)

Havana blue is a very light tone ofazure.

Light Sky Blue
Color coordinates
Hex triplet	#87CEFA
sRGBB (r,g,b)	(135, 206, 250)
HSV (h,s,v)	(203°, 46%, 98%)
CIELChuv (L,C,h)	(80, 55, 233°)
Source	X11 color names
ISCC–NBS descriptor	Brilliant greenish blue
B: Normalized to [0–255] (byte)

There is a web color oflight sky blue.

Sky Blue
Common connotations
boys,daylight, water,air,paleness
Color coordinates
Hex triplet	#87CEEB
sRGBB (r,g,b)	(135, 206, 235)
HSV (h,s,v)	(197°, 43%, 92%)
CIELChuv (L,C,h)	(79, 46, 223°)
Source	X11 color names
ISCC–NBS descriptor	Very light greenish blue
B: Normalized to [0–255] (byte)

The first recorded use ofsky blue as a color name in English was in 1728 in theCyclopædia ofEphraim Chambers.^[60] Prior to the Chambers reference, the color had first been used in 1585 in a book byNicolas de Nicolay where he stated "the tulbant^{[clarification needed]} of the merchant must beskie coloured".^[61][62]

Deep Sky Blue
Color coordinates
Hex triplet	#00BFFF
sRGBB (r,g,b)	(0, 191, 255)
HSV (h,s,v)	(195°, 100%, 100%)
CIELChuv (L,C,h)	(73, 83, 234°)
Source	X11
ISCC–NBS descriptor	Brilliant greenish blue
B: Normalized to [0–255] (byte)

Deep sky blue is an azure-cyan color associated with deepsky blue.

Deep sky blue (Capri) is aweb color.

This color is on thecolor wheel (RGB/HSV color wheel) halfway between azure and cyan.

The traditional name for this color isCapri.^[63]

The first use ofCapri as a color name in English was in 1920.^[64]

The colorCapri in general is named for the azure-cyan color of theMediterranean Sea around the island ofCapri offItaly, the site of several villas belonging to theRoman EmperorTiberius, including his imperial residence in his later years, theVilla Jovis. Specifically, the color Capri is named after the color of theBlue Grotto on the island of Capri^[65] as it appears on a bright sunny day. Today the island of Capri is aresort island popular with tourists.

The namedeep sky blue for this color did not come into use until the promulgation of theX11 color list in 1987.

The nameCapri is still used for this color as well as the namedeep sky blue.

Cerulean
Color coordinates
Hex triplet	#007BA7
sRGBB (r,g,b)	(0, 123, 167)
HSV (h,s,v)	(196°, 100%, 65%)
CIELChuv (L,C,h)	(48, 56, 234°)
Source	[Unsourced]
ISCC–NBS descriptor	Strong greenish blue
B: Normalized to [0–255] (byte)

The first recorded use ofcerulean as a color name inEnglish was in 1590.^[66]

The word is probably derived from theLatin wordcaeruleus, "dark blue, blue, or blue-green", which in turn probably derives fromcaelulum, diminutive ofcaelum, "heaven, sky".^[67]

Pale azure
Color coordinates
Hex triplet	#87D3F8
sRGBB (r,g,b)	(135, 211, 248)
HSV (h,s,v)	(200°, 46%, 97%)
CIELChuv (L,C,h)	(81, 52, 228°)
Source	X11
ISCC–NBS descriptor	Very light greenish blue
B: Normalized to [0–255] (byte)

Maya Blue
Color coordinates
Hex triplet	#73C2FB
sRGBB (r,g,b)	(115, 194, 251)
HSV (h,s,v)	(205°, 54%, 98%)
CIELChuv (L,C,h)	(76, 66, 238°)
Source	[Unsourced]
ISCC–NBS descriptor	Light blue
B: Normalized to [0–255] (byte)

Maya blue was a pigment widely used by theMayan civilization.

Azure (real)
Color coordinates
Hex triplet	#00D5FF
sRGBB (r,g,b)	(0, 213, 255)
HSV (h,s,v)	(190°, 100%, 100%)
CIELChuv (L,C,h)	(79, 75, 221°)
Source	[Unsourced]
ISCC–NBS descriptor	Azure (real)
B: Normalized to [0–255] (byte)

Azure is the color of a nice clearSky.

Jordy Blue
Color coordinates
Hex triplet	#8AB9F1
sRGBB (r,g,b)	(138, 185, 241)
HSV (h,s,v)	(213°, 43%, 95%)
CIELChuv (L,C,h)	(74, 57, 246°)
Source	[45]
ISCC–NBS descriptor	Light blue
B: Normalized to [0–255] (byte)

The color namejordy blue dates back to at least 2001, and came into wider use when theResene Paints colors were used as one of the sources for the Xona Games Color List.^{[citation needed]}

Picton Blue
Color coordinates
Hex triplet	#45B1E8
sRGBB (r,g,b)	(69, 177, 232)
HSV (h,s,v)	(200°, 70%, 91%)
CIELChuv (L,C,h)	(68, 69, 235°)
Source	[45]
ISCC–NBS descriptor	Brilliant greenish blue
B: Normalized to [0–255] (byte)

The color namePicton blue dates back to at least 2001, and came into wider use when theResene Paints colors were used as one of the sources for the Xona Games Color List.^[68] Many of Resene's shades of blue and cyan are named after places in New Zealand'sMarlborough Sounds, where the town ofPicton is located.

United Nations Blue
Color coordinates
Hex triplet	#009EDB
sRGBB (r,g,b)	(0, 158, 219)
HSV (h,s,v)	(197°, 100%, 86%)
CIELChuv (L,C,h)	(61, 75, 237°)
Source	[69]
ISCC–NBS descriptor	Strong blue
B: Normalized to [0–255] (byte)

The colorUnited Nations blue resembles the shade of blue seen on the flag of theUnited Nations. Current branding guidelines (since 2020^[70]) use Pantone 2925. Previously, the flag used Pantone 279.^[71]

Cornflower Blue
Color coordinates
Hex triplet	#6495ED
sRGBB (r,g,b)	(100, 149, 237)
HSV (h,s,v)	(219°, 58%, 93%)
CIELChuv (L,C,h)	(62, 83, 254°)
Source	X11
ISCC–NBS descriptor	Brilliant blue
B: Normalized to [0–255] (byte)

Cornflower blue is a shade of medium-to-light blue containing relatively little green. Its name is a reference to the flowerCentaurea cyanus.

Bleu de France
Color coordinates
Hex triplet	#318CE7
sRGBB (r,g,b)	(49, 140, 231)
HSV (h,s,v)	(210°, 79%, 91%)
CIELChuv (L,C,h)	(57, 90, 250°)
Source	[42]
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

Bleu de France is a color that has been associated inheraldry with theKings of France since the 12th century.

Manganese Blue
Color coordinates
Hex triplet	#1099D6
sRGBB (r,g,b)	(16, 153, 214)
HSV (h,s,v)	(198°, 93%, 84%)
CIELChuv (L,C,h)	(60, 73, 238°)
Source	[72]
ISCC–NBS descriptor	Manganese blue
B: Normalized to [0–255] (byte)

Manganese blue is a clear greenishazure blue colour.

Dodger Blue
Color coordinates
Hex triplet	#1E90FF
sRGBB (r,g,b)	(30, 144, 255)
HSV (h,s,v)	(210°, 88%, 100%)
CIELChuv (L,C,h)	(59, 107, 252°)
Source	X11
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

Dodger blue is a rich bright tone of azure named for its use in the uniform of theLos Angeles Dodgers.

Brandeis Blue
Color coordinates
Hex triplet	#0070FF
sRGBB (r,g,b)	(0, 112, 255)
HSV (h,s,v)	(214°, 100%, 100%)
CIELChuv (L,C,h)	(50, 124, 258°)
Source	[73]
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

Brandeis blue is the tone of azure used in association withBrandeis University.

The university administration defines Brandeis blue as corresponding to thePantone color of 294 or theprocess color of 100c 86m 14y w24k.^[74]

True Blue
Color coordinates
Hex triplet	#2D68C4
sRGBB (r,g,b)	(45, 104, 196)
HSV (h,s,v)	(217°, 77%, 77%)
CIELChuv (L,C,h)	(45, 84, 256°)
Source	[75]
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

The colortrue blue is a deep tone of azure that is the color of the uniforms of the sports teams ofUCLA. It is also one of the shades of blue used by theLos Angeles Chargers though they use the name powder blue.

Tang Blue
Color coordinates
Hex triplet	#0059CF
sRGBB (r,g,b)	(0, 89, 207)
HSV (h,s,v)	(214°, 100%, 81%)
CIELChuv (L,C,h)	(41, 100, 258°)
Source	[76]
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

The colortang blue is a deep tone of azure that is the color of royalblue tang fish.

Puerto Rican Blue
Color coordinates
Hex triplet	#0044ff
sRGBB (r,g,b)	(0, 68, 255)
HSV (h,s,v)	(224°, 100%, 100%)
CIELChuv (L,C,h)	(40, 134, 263°)
Source	[77]
ISCC–NBS descriptor	Bright blue
B: Normalized to [0–255] (byte)

Puerto Rican blue is a bright, cool, saturated shade of blue matching the shade of color of the triangle onPuerto Rico's current national flag.

Royal Blue (web color)
Color coordinates
Hex triplet	#4169E1
sRGBB (r,g,b)	(65, 105, 225)
HSV (h,s,v)	(225°, 71%, 88%)
CIELChuv (L,C,h)	(48, 103, 260°)
Source	X11
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

The web colorroyal blue is a rich tone of azure.

Celestial Blue
Color coordinates
Hex triplet	#4997D0
sRGBB (r,g,b)	(73, 151, 208)
HSV (h,s,v)	(205°, 65%, 82%)
CIELChuv (L,C,h)	(60, 64, 241°)
Source	[78]
ISCC–NBS descriptor	Light blue
B: Normalized to [0–255] (byte)

The first recorded use ofcelestial blue as a color name in English was in 1535.^[79]

The source of this color is thePlochere Color System, a color system formulated in 1948 that is widely used by interior designers.^[80]

Vista Blue
Color coordinates
Hex triplet	#7C9ED9
sRGBB (r,g,b)	(124, 158, 217)
HSV (h,s,v)	(218°, 43%, 85%)
CIELChuv (L,C,h)	(65, 57, 251°)
Source	[81]
ISCC–NBS descriptor	Light blue
B: Normalized to [0–255] (byte)

The source ofvista blue is the "Pantone Textile Paper eXtended (TPX)" color list, color #15-3930 TPX—Vista Blue.^[81]

Silver Lake Blue
Color coordinates
Hex triplet	#5D89BA
sRGBB (r,g,b)	(93, 137, 186)
HSV (h,s,v)	(212°, 50%, 73%)
CIELChuv (L,C,h)	(56, 51, 246°)
Source	[82]
ISCC–NBS descriptor	Moderate blue
B: Normalized to [0–255] (byte)

The source ofSilver Lake blue is the "Pantone Textile Paper eXtended (TPX)" color list, color #17-4030 TPX—Silver Lake Blue.^[82]

Tufts Blue
Color coordinates
Hex triplet	#3E8EDE
sRGBB (r,g,b)	(62, 142, 222)
HSV (h,s,v)	(210°, 72%, 87%)
CIELChuv (L,C,h)	(58, 81, 249°)
Source	[83]
ISCC–NBS descriptor	Strong blue
B: Normalized to [0–255] (byte)

Tufts blue is the tone of azure used in association withTufts University.

Honolulu Blue
Color coordinates
Hex triplet	#0076B6
sRGBB (r,g,b)	(0, 118, 182)
HSV (h,s,v)	(201°, 100%, 71%)
CIELChuv (L,C,h)	(47, 69, 244°)
Source	[84]
ISCC–NBS descriptor	Strong blue
B: Normalized to [0–255] (byte)

Honolulu blue is the tone of azure used in association with theDetroit Lions football team.^[85][86]

Air Force Blue
Color coordinates
Hex triplet	#5D8AA8
sRGBB (r,g,b)	(93, 138, 168)
HSV (h,s,v)	(204°, 45%, 66%)
CIELChuv (L,C,h)	(55, 37, 234°)
Source	Vexillological:[87]
ISCC–NBS descriptor	Moderate greenish blue
B: Normalized to [0–255] (byte)

Air force blue, also known asRAF blue, is used by theRoyal Air Force, the first air force to choose an "air force blue" color by which to identify itself, in 1920.

The color "air force blue" is a medium tone of azure since it has a hue code of 204 which is a hue code between 195 and 225, signifying a tone of azure.

Steel Blue
Color coordinates
Hex triplet	#4682B4
sRGBB (r,g,b)	(70, 130, 180)
HSV (h,s,v)	(207°, 61%, 71%)
CIELChuv (L,C,h)	(52, 54, 243°)
Source	X11
ISCC–NBS descriptor	Moderate blue
B: Normalized to [0–255] (byte)

Steel blue is agrayish tone of azure that resembles the colorblue steel, i.e., steel which has been subjected tobluing in order to protect it fromrust.

The first recorded use ofsteel blue as a color name inEnglish was in 1817.^[88]

French Blue
Color coordinates
Hex triplet	#0072BB
sRGBB (r,g,b)	(0, 114, 187)
HSV (h,s,v)	(203°, 100%, 73%)
CIELChuv (L,C,h)	(46, 75, 248°)
Source	Maerz and Paul
ISCC–NBS descriptor	Strong blue
B: Normalized to [0–255] (byte)

French blue^[89] is a deep azure color commonly^{[citation needed]} used in quality men'sdress shirts.

According to theOxford English Dictionary, the first use ofFrench Blue in English was inThe Times of 1802.^[90]

Lapis Lazuli
Color coordinates
Hex triplet	#26619C
sRGBB (r,g,b)	(38, 97, 156)
HSV (h,s,v)	(210°, 76%, 61%)
CIELChuv (L,C,h)	(40, 58, 249°)
Source	[91][not specific enough to verify]
ISCC–NBS descriptor	Moderate blue
B: Normalized to [0–255] (byte)

The colorlapis lazuli is displayed at left.

Lapis Lazuli is a color that is a representation of the most common color oflapis lazuli.

Royal blue (traditional)
Color coordinates
Hex triplet	#002366
sRGBB (r,g,b)	(0, 35, 102)
HSV (h,s,v)	(219°, 100%, 40%)
CIELChuv (L,C,h)	(16, 44, 260°)
Source	[92]
ISCC–NBS descriptor	Deep blue
B: Normalized to [0–255] (byte)

The traditional color calledroyal blue is a dark shade of azure.

Blue (NCS)
Color coordinates
Hex triplet	#0087BD
sRGBB (r,g,b)	(0, 135, 189)
HSV (h,s,v)	(197°, 100%, 74%)
CIELChuv (L,C,h)	(53, 65, 237°)
Source	sRGB approximation toNCS 2060-B[6]
ISCC–NBS descriptor	Moderate blue
B: Normalized to [0–255] (byte)

The color defined asblue in the NCS orNatural Color System is anazure-like color. The Natural Color System is a color system based on the fourunique hues orpsychological primary colors red, yellow, green, and blue. The NCS is based on theopponent process theory of vision.

The "Natural Color System" is widely used inScandinavia.

Spanish Blue
Color coordinates
Hex triplet	#0070B8
sRGBB (r,g,b)	(0, 112, 184)
HSV (h,s,v)	(203°, 100%, 72%)
CIELChuv (L,C,h)	(46, 73, 248°)
Source	Gallego and Sanz[41]
ISCC–NBS descriptor	Strong blue
B: Normalized to [0–255] (byte)

Spanish blue is the color that is calledAzul (theSpanish word for "blue") in theGuía de coloraciones (Guide to colorations) by Rosa Gallego and Juan Carlos Sanz, a color dictionary published in 2005 that is widely popular in theHispanophone realm. It is a shade ofazure.^{[citation needed]}

Argentinian Blue
Color coordinates
Hex triplet	#6CB4EE
sRGBB (r,g,b)	(108, 180, 238)
HSV (h,s,v)	(207°, 55%, 93%)
CIELChuv (L,C,h)	(71, 65, 241°)
Source	[Unsourced]
ISCC–NBS descriptor	Light blue
B: Normalized to [0–255] (byte)

The web colorArgentinian blue is a light azure color seen on the national flag ofArgentina.

Berkeley Blue
Color coordinates
Hex triplet	#003262
sRGBB (r,g,b)	(0, 50, 98)
HSV (h,s,v)	(209°, 100%, 38%)
CIELChuv (L,C,h)	(21, 39, 253°)
Source	[93]
ISCC–NBS descriptor	Deep blue
B: Normalized to [0–255] (byte)

Berkeley Blue is one of the official colors of theUniversity of California, Berkeley, along withCalifornia Gold.^[94] Until 2007, the university had usedYale Blue in its place, given Berkeley's historical ties toYale University, particularly in itsfounding.^[95] Berkeley'sschool colors are the originators for those of all the campuses in theUniversity of California system, of which Berkeley is the oldest as itsflagship.

Ruddy Blue
Color coordinates
Hex triplet	#76ABDF
sRGBB (r,g,b)	(118, 171, 223)
HSV (h,s,v)	(210°, 47%, 87%)
CIELChuv (L,C,h)	(68, 56, 243°)
Source	[11]
ISCC–NBS descriptor	Brilliant blue
B: Normalized to [0–255] (byte)

Ruddy blue represents the coloring of the beak of theruddy duck. It is a light shade of azure.

Celtic Blue
Colour coordinates
Hex triplet	#246BCE
sRGBB (r,g,b)	(36, 107, 206)
HSV (h,s,v)	(215°, 83%, 81%)
CIELChuv (L,C,h)	(46, 91, 255°)
Source	[40]
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

Celtic blue is a shade of blue, also known asglas celtig in Welsh, orgorm ceilteach in both theIrish language and inScottish Gaelic. Julius Caesar reported (inCommentarii de Bello Gallico) that the Britanni used to colour their bodies blue with vitrum, a word that means primarily "glass", but also the domestic name for the "woad" (Isatis tinctoria), besides theGaulish loanwordglastum (fromProto-Celtic *glastos "green"). The connection seems to be that both glass and the woad are "water-like" (lat. vitrum is fromProto-Indo-European *wed-ro- "water-like").

Polynesian Blue
Color coordinates
Hex triplet	#224C98
sRGBB (r,g,b)	(34, 76, 152)
HSV (h,s,v)	(219°, 78%, 60%)
CIELChuv (L,C,h)	(34, 66, 257°)
Source	[46]
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

Polynesian blue is a dark blue color, almost navy.

Moroccan Blue
Color coordinates
Hex triplet	#468fea
sRGBB (r,g,b)	(70, 143, 234)
HSV (h,s,v)	(213°, 70%, 92%)
CIELChuv (L,C,h)	(59, 89, 252°)
Source	[47]
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

Moroccan blue (alsoChefchaouen blue) is a vivid blue color.

Yale "Blue Site" Blue
Color coordinates
Hex triplet	#00356B
sRGBB (r,g,b)	(0, 53, 107)
HSV (h,s,v)	(210°, 100%, 42%)
CIELChuv (L,C,h)	(22, 45, 254°)
Source	[96]
ISCC–NBS descriptor	Deep blue
B: Normalized to [0–255] (byte)

Yale Blue is the darkazure color used in association withYale University. The hue of Yale Blue is one of the two official colors ofIndiana State University,^[97] theUniversity of Mississippi,^[98] andSouthern Methodist University.^[99] The official color "DCU Blue" ofDublin City University is very close to Yale Blue.^[100]

Yale Blue was also an official color ofUniversity of California, Berkeley^[95] andDuke University.^[101]

University of Pennsylvania Blue
Color coordinates
Hex triplet	#011F5B
sRGBB (r,g,b)	(1, 31, 91)
HSV (h,s,v)	(220°, 99%, 36%)
CIELChuv (L,C,h)	(14, 37, 260°)
Source	[102]
ISCC–NBS descriptor	Deep purplish blue
B: Normalized to [0–255] (byte)

Penn Blue is one of the official colors of theUniversity of Pennsylvania, along with Penn Red. While the school colors were defined by 1910,^[103] university history points to earlier times when the colors may have been chosen, including a possible visit byGeorge Washington to the university, where students used the color of his tunic to determine school colors or a track meet wherePenn athletes declared that they would wear the colors "of the teams we beat," which would be those of bothHarvard University andYale University.^[104] Originally defined as the colors used on theAmerican flag, the colors have since deviated.^[103]

Sapphire
Color coordinates
Hex triplet	#082567
sRGBB (r,g,b)	(8, 37, 103)
HSV (h,s,v)	(222°, 92%, 40%)
CIELChuv (L,C,h)	(17, 45, 260°)
Source	[48]
ISCC–NBS descriptor	Deep blue
B: Normalized to [0–255] (byte)

Sapphire is a deep shade of navy blue, based on the color of an averagesapphire gemstone. However, sapphires can also be pink, yellow, or orange.

Delft Blue
Color coordinates
Hex triplet	#1F305E
sRGBB (r,g,b)	(31, 48, 94)
HSV (h,s,v)	(224°, 67%, 37%)
CIELChuv (L,C,h)	(21, 35, 258°)
Source	[105][43]
ISCC–NBS descriptor	Dark blue
B: Normalized to [0–255] (byte)

Delft blue is a dark blue color. The name is derived from the Dutch potteryDelftware, also known simply as "Delft Blue".

Resolution Blue
Color coordinates
Hex triplet	#002387
sRGBB (r,g,b)	(0, 35, 135)
HSV (h,s,v)	(224°, 100%, 53%)
CIELChuv (L,C,h)	(20, 64, 263°)
Source	[45]
ISCC–NBS descriptor	Vivid blue
B: Normalized to [0–255] (byte)

Resolution blue is a vivid blue color. The color name dates back to at least 2001, and came into wider use when theResene Paints colors were used as one of the sources for the Xona Games Color List.^[68] Many of Resene's shades of blue and cyan are named after places in New Zealand'sMarlborough Sounds, whereResolution Bay is located.

• Lists of colors
• RAL 5009 Azure blue
• Cyan