ENG: Research on color perception is helping clarify a century-old model developed by Erwin Schrödinger. A team led by Los Alamos scientist Roxana Bujack used geometry to mathematically define how people perceive hue, saturation, and lightness. Their work shows that these qualities do not depend mainly on external factors such as culture or learned experience, but are intrinsic properties of the color metric itself. This metric describes perceived color distance, meaning how different two colors appear to an observer. By formalizing these perceptual attributes, the researchers complete an important part of Schrödinger’s goal: a closed model of color based on geometric similarity.

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