The value structure of Impressionism is mid-key: quiet, controlled, and cohesive. Heat pervades this palette; warm chromatic identities outweigh cool ones at almost every weight. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. The highest-chroma note - #4B3027 - appears at just 9.8%, deployed as a precision accent against the quieter ground. From deepest dark to palest light, the palette traverses 58 units of the value scale - a span that creates natural depth.