Intro

Color theory explains how colors interact with each other and how they are perceived.

Color Physics

Color Models

A color model is a system for representing colors with numbers. It defines primary components which can be mixed to derive all other colors. Different models are used for art, digital screens, printing, and computer vision

RYB

A subtractive model in which red, yellow, and blue are commonly taught as primary colors.

  • Subtractive: colors mix by absorbing light
  • Secondary colors: Red + Yellow → Orange, Yellow + Blue → Green, Blue + Red → Purple
  • Used in traditional painting and art education
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Primary, secondary, and tertiary colors of the RYB color model

RGB color model

CMYK (Cyan, Magenta, Yellow, Black)

A subtractive color model used in printing.

  • Cyan, Magenta, Yellow are primary inks; Black (K) is added for depth and efficiency
  • Subtractive: colors mix by absorbing light
  • Used in physical media and printing

HSV (Hue, Saturation, Value/Lightness)