saturation

Definition: (1) Subjective experience of vividness or richness of colour. * That attribrute of colour which distinguishes it from a grey of the same brightness: it correlated with colorimetric purity. * Also known as chroma. (2) Condition of being unable to contain or accept more e.g. a saturation solution will not dissolve any more of a solute; at saturation, a colour cannot be more rich or vivid.

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