complementary color
Noun
Meaning
either one of two chromatic colors that when mixed together give white (in the case of lights) or grey (in the case of pigments)
Source: WordNetSynonyms
Hypernyms
Examples
yellow and blue are complementaries
Because magenta is the complementary color of green, magenta flowers have the highest contrast with the green foliage, and therefore are more visible to the insects needed for their pollination.
Certain luxury goods, such as watches and jewelry, are often placed in boxes lined with violet velvet, since violet is the complementary color of yellow, and shows gold to best advantage.
In this model, magenta is the complementary color of green, and these two colors have the highest contrast and the greatest harmony.
In this system, magenta is the complementary color of green, and combining green and magenta light on a black screen will create white.
Second, cyan is the complementary color of red, so red blood on a cyan gown looks black or gray rather than red, and is not as vivid.