1 In the traditional RYB color model, the complementary/opposite color pairs are red & green, yellow & violet, and blue & orange, though these pairings fail the modern definition of complementary colors, as they produce a brown color when combined.he complementary primary–secondary combinations are red – cyan, green – magenta, and blue – yellow. In the RGB color model, the light of two complementary colors, such as red and cyan, combined at full intensity, will make white light, since two complementary colors contain light with the full range of the spectrum.