Color Theory

Chroma

The purity or intensity of a color, describing how vivid it appears compared to a neutral gray of the same lightness.

Chroma is distinct from saturation, though the two are often confused. Chroma measures colorfulness in absolute terms relative to a reference white, while saturation measures it relative to the color's own brightness. A color with high chroma is vivid and intense, while a color with zero chroma is a pure gray. The Munsell color system was among the first to separate chroma as an independent dimension. In modern color science, CIELAB and OKLCH both use chroma as a key axis, making it essential for perceptually uniform color manipulation.

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