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Color Systems

Naming, matching & specifying

Color · LEARN

Illustration for Color Systems

A color on your screen is not a color on paper, and neither is a color in a brand guideline. Color systems exist to pin colors down. Pantone matches ink across printers and materials; RGB describes light for screens; CMYK describes the four-ink printing process; HEX and HSL are the web's notations for the same idea.

Designers also speak of color models versus color spaces: a model is the math, a space (like sRGB) is the agreement about what the numbers mean. The practical skill is translation — specifying one color across print, screen, and environmental applications, and knowing where each conversion loses something.

Naming and specifying color

  • RGB, HEX, and HSL for screens
  • CMYK process color and print separation
  • Pantone and spot-color specification
  • Converting color between print and screen
  • Gamut: what screens can show that ink cannot
  • Documenting color in brand guidelines