colour triangle

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A triangular representation of the relationship between the hue and saturation (1) dimensions of colours, having hues arranged in their natural spectrum order around its perimeter, with similar hues close together and complementary colours opposite one another, the centre representing white light and saturation increasing towards the perimeter, a part of which is occupied by the non-spectral colour purple linking spectral blue with spectral red. Achromatic (1) colour is not represented, and therefore neither is the lightness dimension of colour. US color triangle. Compare colour circle, colour solid.

Subjects: Psychology.

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