The cool summer colour palette is built from softened, blue-based shades: bluebell, orchid, teal, iris, rosewood and mist. These are unmistakably cool colours with the edge taken off, sitting at the maximum coolness of -1.00 with a chroma of -0.60 that softens rather than sharpens.
Colouring in this season is clearly cool: skin with a pink or blue cast, hair from ash brown to soft dark, and eyes typically in blue, grey or cool green. It shares its perfect coolness with Cool Winter. The separator is chroma: -0.60 here, meaning softened, against 0.70 there, meaning clear. Both are unambiguously cool; only one is bright, and mixing them up is why some people find cool colours either perfect or harsh with nothing in between. The same season is written as the cool summer color palette in American spelling.
