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Blue is one of the three primary colours in the RYB colour model (traditional colour theory), as well as in the RGB (additive) colour model. It lies between violet and cyan on the spectrum of visible light.
The web color light blue is part of the X11 color system, with a hue code of 194. This color is closer to cyan than to blue. Variations of this color are known as sky blue , baby blue , or angel blue.
Web colors are colors used in displaying web pages on the World Wide Web; they can be described by way of three methods: a color may be specified as an RGB triplet, in hexadecimal format (a hex triplet) or according to its common English name in some cases.
The following is a list of colors. A number of the color swatches below are taken from domain-specific naming schemes such as X11 or HTML4. RGB values are given for each swatch because such standards are defined in terms of the sRGB color space.
In many American, Canadian, New Zealand and Australian hospitals, for example "code blue" indicates a patient has entered cardiac arrest, while "code red" indicates that a fire has broken out somewhere in the hospital facility.
Electric blue is a color whose definition varies but is often considered close to cyan, and which is a representation of the color of lightning, an electric spark, and the color of ionized argon gas; it was originally named after the ionized air glow produced during electrical discharges, though its meaning has broadened to include shades of ...
Oxford Blue colour #002147. Oxford Blue is the official colour of the University of Oxford. The official Oxford branding guidelines set its definition as Pantone 282, equivalent to the hex code #002147. With a hue code of 212, this colour is a very dark tone of azure.
A color in the RGB color model is described by indicating how much of each of the red, green, and blue is included. The color is expressed as an RGB triplet ( r , g , b ), each component of which can vary from zero to a defined maximum value.
Non-photo blue (or non-repro blue) is a common tool in the graphic design and print industry, [1] [2] being a particular shade of blue that cannot be detected by graphic arts camera film.
Category:Shades of blue. Wikimedia Commons has media related to Types of blue. This category is for all varieties, not only shades in the technical sense. See also the categories Shades of azure and Shades of cyan.
