| Azure | |
|---|---|
 _2_(cropped).jpg) .png)  _3.jpg)  | |
 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 | On theRGB and CMYK color wheel, Azure is defined as the colour halfway betweenblue andcyan in thecolor wheel. The colour halfway between blue and cyan on the RGB color wheel has a hex code of 0080FF.[1] |
| ISCC–NBS descriptor | Vivid blue |
| B: Normalized to [0–255] (byte) H: Normalized to [0–100] (hundred) | |
Azure[a] is the color betweencyan andblue on thecolor wheel. It is often described asthe color of thesky on a clear day.[4][5]
On theRGB color wheel, "azure" (hexadecimal #0080FF) is defined as the color at 210 degrees, i.e., thehue halfway betweenblue and cyan. In theRGB color model, used to create all the colors on a television or computer screen, azure is created by adding a 50% of green light to a 100% of blue light.
In theX11 color system, which became a model for earlyweb colors, azure is depicted as a pale cyan or white cyan.
The color azure ultimately takes its name from the vivid-bluegemstonelapis lazuli, ametamorphic rock.Lapis is theLatin word for "stone" andlāzulī is thegenitive form of theMedieval Latinlāzulum, which is taken from theArabicلازوردlāzaward[laːzwrd] (listenⓘ), itself from thePersianلاژوردlāžaward, which is the name of the stone in Persian[6] and also of a place where lapis lazuli was mined.[7][8]
The name of the stone came to be associated with its color. TheFrenchazur, theItalianazzurro, thePolishlazur,Romanianazur andazuriu, thePortuguese andSpanishazul,Hungarianazúr, and theCatalanatzur, all come from the name and color of lapis lazuli. The dropping of the initiall in Romance languages may be a case of the linguistic phenomenon known asrebracketing, i.e. Romance speakers may have perceived the sound as the initial phoneme of the definitive article in their respective language.
The word was adopted into English from the French, and the first recorded use of it as a color name in English was in 1374 inGeoffrey Chaucer's workTroilus and Criseyde, where he refers to "a broche, gold andasure" (a brooch, gold and azure).[9][10][11]
Some languages, such asItalian, generally consider azure to be a basic colour, separate and distinct from blue. Some sources even go to the point of defining blue as a darker shade of azure.[12]
Azure also describes the color of the mineralazurite, both in its natural form and as a pigment in various paint formulations. In order to preserve its deep color, azurite was ground coarsely. Fine-ground azurite produces a lighter, washed-out color. Traditionally, the pigment was considered unstable in oil paints, and was sometimes isolated from other colors and not mixed.
The use of the term spread through the practice ofheraldry, where "azure" represents a blue color in the system oftinctures. Inengravings, it is represented as a region of parallel horizontal lines, or by the abbreviationaz. orb. In practice, azure has been represented by any number of shades of blue. In later heraldic practice a lighter blue, calledbleu celeste ("sky blue"), is sometimes specified.
 | This section'sfactual accuracy isdisputed. Relevant discussion may be found on thetalk page. Please help to ensure that disputed statements arereliably sourced.(September 2021) (Learn how and when to remove this message) |
According to the logic of theRGB color wheel,indigo colors are those colors with hue codes between 255 and 225 (degrees), azure colors are those colors with hue codes between 195 and 225, and cyan colors are those colors with hue codes between 165 and 195. Another way of describing it could be that cyan is a mixture of blue and green light, azure is a mixture of blue and cyan light, and indigo is a mixture of blue and violet light.
All of the colors shown in the sectionshades of azure are referenced as having ahue between 195 and 225 degrees, with the exception of the very paleX11 web color azure – RGB (240, 255, 255) – which, with a hue of 180 degrees, is a tone ofcyan, but follows the artistic meaning of azure as sky blue.
Insects
Birds
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Plants
The true color of the exoplanetHD 189733b determined by astronomers is azure blue.[13]
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