Which colour from the rainbow (ROYGBIV) absorbs the most heat?
The answer is actually red, but a dark version of the other colors would absorb more heat than a light red. An object that is red is actually absorbing (gaining heat from) orange, yellow, green, blue, indigo, and violet. Red light has the least energy, so an object that reflects only red absorbs more energy than an object that reflects only one of the other colors. However, you probably won’t find that this is true in any object that you have lying around. Objects generally aren’t “pure” in which wavelengths they absorb or emit. Also, there are other sources of heat (like ultraviolet or infrared) that you can’t see, so if you took the object outside and set it in the sun, you’d have to consider those wavelengths, too. A light color (like pink) is absorbing all of the same colors that pure red does, but it also reflects some of the red back. A dark color (like a really rich, dark red) is absorbing all of the same colors that pure red does, but it also absorbs some of the red. This means
