Seasonal Color Analiysis by Gerrie Pinckney and Carole Jackson

In the 1980s, Gerrie Pinckney and Carole Jackson both wrote books elaborating on the idea of seasonal approach to personal color analysis.

in the system, color grouping relate to nature's four seasons - spring and autumn have a warm undertone, summer and winter have a cool undertone. the seasons further difined by the saturation of the colors - spring and winter colors are ckear, bright, and vivid; autumn and summer are more subdued and less intense.