About Colours
The three primary colours of pigment are called subtractive colour mixture, and the
more colours are added, the darker it will be. Various colours can be created by
mixing cyan (C), magenta (M), and yellow (Y) pigments (such as ink or toner),
however, black (K) is actually used as the fourth colour in addition to the three
primary pigments.
Three primary colors of light
Three primary colors of pigment
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