Red Blue

Why can not the primary colors (red, blue and yellow) can be created using any combination of colors?

In art, the three primary pigment colors are red, blue and yellow. According to the books of paint, the pigments can not be created using any combination of colors, is it this true and, if so, why? The color of light is determined only by its wavelength. So there is no primary color from the perspective of a physicist. And the chemistry of pigments is so complicated, I do not see how you can have pigment primary colors. Perhaps the physiology of the eye is what determines the primary colors.

Take blue as an example. Blue pigment appears as it does, because it reflects the blue wavelengths of light. If 2 or more pigments to mix any combination, the mixture resultant reflect more than one color and the eye does not see this as pure blue. Instead, you will see some of each of the pigments in the mixture.

Red vs. Blue: ODST Episode 01

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