If a human and an animal both look at a natural color, they see it as natural; however, if both look at a color reproduced via primary colors, such as on a color television screen, the human may see it as matching the natural color, while the animal does not, since the primary colors have been chosen to suit human capabilities.
If a human and an animal both look at a natural color, they see it as natural; however, if both look at a color reproduced via primary colors, for example on a color television screen, the human may see it as matching the natural color, while the animal does not; in this sense, reproduction of color via primaries must be «tuned» to the color vision system of the observer.