Answer:
red–cyan, green–magenta, and blue–yellow or red–green, yellow–purple, and blue–orange
Step-by-step explanation:
Modern color theory uses either the RGB additive color model or the CMY subtractive color model, and in these, the complementary pairs are red–cyan, green–magenta, and blue–yellow.
In the traditional RYB color model, the complementary color pairs are red–green, yellow–purple, and blue–orange.