Some websites say that darker colors save more energy. That was true once upon a time. Not any more. Now, the colors which take the most energy are black and white. The further you move away from those colors, the more energy you save. And you won’t save that much energy. You can do other things which will save more energy.
Colors are sorted in order of those using the least energy. 4 stars, fantastic. 3 stars superb, 2 star great, 1 star good.
Good Black substitutes: MidnightBlue , DarkSlateGray , DarkSlateBlue , ANA Instrument Black , Camo Black
Good White substitutes: Gainsboro , LightGray , Coast Guard White