How to create color harmony for artist, The tetradic (double complementary) scheme.

The tetradic (double complementary) scheme is the richest of all the schemes because it uses four colors arranged into two complementary color pairs. This scheme is hard to harmonize; if all four colors are used in equal amounts, the scheme may look unbalanced, so you should choose a color to be dominant or subdue the colors.Pros: The tetradic scheme offers more color variety than any other