Abstract: A set of color gages for assisting in selecting harmonious color combinations in accordance with those found in nature and the method of using such gages. In nature all colors can be classified into one of three groups called Solis, Aero and Aqua. All colors within each one of these three groups are compatible with each other, i.e., appear harmonious to the human eye. In addition, Aero colors are compatible with either Solis or Aqua colors. Solis and Aqua colors are not compatible. The gages are preferably circular, and contain a plurality of colored segments. The colored segments of the color gages are Solis, Aero, and Aqua versions of each of the six colors red, pink, yellow, green, purple, white, brown, and blue, with the exception of Aqua Brown and Solis Blue since these colors do not appear in nature.