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Learn how to specify web colors using hexadecimal format (hex triplet) or RGB values. A hex triplet is a six-digit number that represents the red, green, and blue components of a color, while RGB values are decimal numbers in the range 0 to 255.
Learn about the different varieties and meanings of the color red in various color systems, such as RGB, CMYK, Crayola, Munsell, and NCS. See examples of red colors and their spectral coordinates, hex codes, and ISCC–NBS descriptors.
A comprehensive list of colors with swatches and names, organized by alphabetical order. The list shows the color values in the sRGB color space and provides tool tips with HSV, RGB, and #hex values.
Learn about the additive color model that uses red, green and blue primary colors of light to reproduce a broad array of colors. Find out how the RGB color model works, how it differs from subtractive color, and how it is used in electronic systems and devices.
Learn about the standard for in-band signaling to control cursor location, color, font styling, and other options on video text terminals and terminal emulators. Find out the history, platform support, and related standards of ANSI escape sequences.
Learn about the different color palettes used to produce black-and-white and RGB color pictures by a computer's display hardware. See examples of monochrome (1-bit to 8-bit), dichrome (16-bit RG), and full RGB (24-bit) formats.
Learn about the history and usage of X11 color names, a text file that maps strings to RGB values on the X Window System. Compare the X11, W3C and web colors lists and see examples of color names with clashing or multiple definitions.
Learn about the color wheel, an abstract illustration of color hues and their relationships. Explore the different models of color wheels based on primary, secondary and tertiary colors, and their applications in art, science and technology.