Red, green and blue are primary colors. The theory of trichromatic theory is derived from the color mixing and the color matching explanations.
According to the experiment in this theory, the individual person having normal vision of color requires three wavelengths of the primary colors to match with any other color in the visible spectrum. This led to finding of color vision which is based on the activities of three different receptors each having a different sensitivity of the peak. The three receptors are each sensitive to colors red, blue and green respectively.
What is a trichromatic theory?
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.
In 1802, Young postulated the existence of three types of photoreceptors (now known as cone cells) in the eye, each of which was sensitive to a particular range of visible light.
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