Cool Winter is the purest cool season in the winter family, at the maximum -1.00 on temperature. Colouring is unmistakably blue-based and clearly contrasted: cool-toned skin, hair from ash brown to soft black, and eyes in cool blue, grey or cool brown.
It shares its full coolness with Cool Summer. Chroma separates them: 0.70 here, meaning clear and bright, against -0.60 there, meaning softened. Same temperature, opposite brightness, and it is the pair most often mixed up.
