Michel Eugene Chevreul.

perceptual-2

Michel Eugene Chevreul was a chemist who’s work led to early applications in fields of art and science. He was known for having invented a better dye technique  which then led to his work The Principals of Harmony and Contrast of Colours.

Contrast effect.

A contrast effect is the enhancement or diminishment of a colour, relative to the normal perception of it. A colour can be seen as brighter or more vivid with am opposite or contrasting colour next to it.

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