What is polychromatic color?

Poly- means many. This chord contains six different hues, equally spaced around the color wheel. It is sometimes called the double triad or the hexad. The example is made up of tints, tones, and shades of the six intermediate hues, yellow green, blue green, blue violet, red violet, red orange, and yellow orange. Be aware that this is really too many colors for this particular design. In a larger design, six colors might do very well, but this is a chord that needs careful handling any time.