pink does not really exist. That is, of course he is, but only in our imagination, scientists say. The problem is that pink is a combination of red and purple, the two colors which are on opposite sides of the rainbow spectrum. Pink can not exist in nature without in order not to bend the rainbow colors to red and purple mingled that it is theoretically impossible. Color - is the way our brain and vision, and when you look at a pink object that is actually seen in the wavelength of light pink. It appears pink because certain wavelengths of light are reflected while others are absorbed by being depressed pigments. So Pink is reflective rather than transmitting the color that people see, because the brain converts the light reflected from it. In fact, pink be called "negative green" color, because it is residual from exposure to white when we remove the green color. See also: Pink lake on the island of Middle. Blue City (8 photos). Unusual multicolored lake.