Humans can see several thousand shades of color but have cone photoreceptors that are sensitive to only three (perhaps four) wavelengths of light. What is the best explanation for why we see so many colors?

Question

Quizplus · Accepted Answer

Color perception is achieved by activation of various combinations between the three cone types. By varying the relative stimulation of the cones, our brain can differentiate between many thousands of colors. This is called trichromatic color vision. The rods also contribute to our perception of brightness and play a role in our ability to see in dim lighting conditions.

Humans Can See Several Thousand Shades of Color but Have