Young–Helmholtz theory

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The Young–Helmholtz theory (based on the work of Thomas Young and Hermann von Helmholtz in the 19th century), also known as the trichromatic theory, is a theory of trichromatic color vision – the manner in which the visual system gives rise to the phenomenological experience of color.

Excerpt from the Wikipedia article “Young–Helmholtz theory”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Hermann von Helmhotz, Public domain, via Wikimedia Commons.