Color - RYB (Red, Yellow, Blue) color model

About

RYB (Red, Yellow, Blue) ¹⁾ is a physical colorspace

• based on the subtractive property of the color
• where red, yellow, and blue are the primary colors used to create other colors.

With white and black pigments, a larger gamut of color nuances can be created including tints and shades.

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<MATH> \begin{array}{rrrl} & & yellow & + & blue & = & green \\ & & blue & + & red & = & magenta / purple \\ & & red & + & yellow & = & orange \\ red & + & yellow & + & blue & = & brown \\ \end{array} </MATH>

Wheel

A wheel (star) staring:

• the primary colors (RYB):
  • Red
  • Yellow
• the secondary / complementary colors
  • Purple (red mixed with blue),
  • Orange (red mixed with yellow),
  • Green (yellow mixed with blue).

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