Use this tag for questions about representing or manipulating colors in a programming language.
Color is the visual perceptual property corresponding in humans to the categories called red, green, blue and others. Color derives from the spectrum of light interacting in the eye with the spectral sensitivities of the light receptors. Color categories and physical specifications of color are also associated with objects, materials, light sources, etc., based on their physical properties such as light absorption, reflection, or emission spectra. By defining a color space, colors can be identified numerically by their coordinates.
Web colors are colors used in designing web pages, and the methods for describing and specifying those colors. Hexadecimal color codes begin with a hash (#)
Authors of web pages have a variety of options available for specifying colors for elements of web documents. Colors may be specified as an RGB triplet in hexadecimal format (a hex triplet); they may also be specified according to their common English names in some cases. Often a color tool or other graphics software is used to generate color values.
Some browsers and devices do not support colors. For these and blind and colorblind users, Web content depending on colors can be unusable or difficult to use. Both foreground and background color should be modified to avoid black on black effects. Similarly, most browsers show links as shades of blue by default; therefore, dark background colors, such as blue or navy, do not display well for such links.
