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Additive color

Additive colors means that the colors have been produced by adding a number of colored lights to form a color. Normally red, green, and blue colors are used. Hence the term RGB-colors. By changing the relative lightness of the component colors, one can produce different colors.

For example the colors on a TV-set and on a computer screen are based on trichromatic additive colors.

The basis for tree color techniques is the model of trichromatic human color vision.