<^How We See Color> A rainbow is a spectrum of colors, right? Red, orange, yellow, green, blue, violet, to be exact. When all of these colors reach your eyeballs at the same time, coming from the same place, you see white light. But what happens when only one color of light does? Or two colors of light?
Objects have particular color because they don’t equally reflect light of all the colors of the rainbow. They absorb some and reflect others. A red apple absorbs orange, yellow, green, blue, and violet. You never see these light colors because they never make it back to your eye. But the red apple reflects red light. The red light enters your eyeballs. You “see red” -- literally.
