Whats the difference between primary colors and visible light?
The term “primary colors” only refers to three colors: Red, green and blue if you’re talking about light, or red, yellow and blue if you’re talking about art. They’re called primary colors because the other colors can be formed by mixing them, for example: red + yellow = orange red + blue = purple etc. The term “visible light” refers to all electromagnetic radiation (light) that can be seen by the naked eye, everything from red through to violet. The wavelengths of visible light vary from about 400nm (red light) to about 750 (violet light).
