Complementary Colors - Color Theory

Color Theory

In color theory, two colors are called complementary if, when mixed in the proper proportion, they produce a neutral color (grey, white, or black).

In roughly-perceptual color models, the neutral colors (white, greys, and black) lie along a central axis. For example, in the HSV color space, complementary colors (as defined in HSV) lie opposite each other on any horizontal cross-section.

Thus, in the CIE 1931 color space a color of a particular "dominant" wavelength can be mixed with a particular amount of the "complementary" wavelength to produce a neutral color (grey or white).

In the RGB color model (and derived models such as HSV), primary colors and secondary colors are paired in this way:

  • red and cyan
  • green and magenta
  • blue and yellow.

Read more about this topic:  Complementary Colors

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