How to Mix Neutrals | Complementary Colors Complementary colors are opposite of each other on the color wheel and neutralize when they mix. They also contain all three primary colors, so it’s a quicker (if your colors are already mixed!) way to get a neutral gray and brown. Try it out! #colormixing #colortheory #complementarycolors #howtopaint #colorblending #neutrals #mixingcolors #artutorial #arttechniques #artteacher | That Art Teacher