Check out this sweet article that explains Why Every Movie Looks Sort of Orange and Blue.
Relevant snippet that gets to the heart of the matter:
One way to figure out what will look good is to figure out what the common denominator is in the majority of your scenes. And it turns out that actors are in most scenes. And actors are usually human. And humans are orange, at least sort of!Pretty cool.
Most skin tones fall somewhere between pale peach and dark, dark brown, leaving them squarely in the orange segment of any color wheel. Blue and cyan are squarely on the opposite side of the wheel.
You may remember from preschool that “opposite” color pairs like this are also known as “complementary” colors. That means that, side-by-side, they produce greater contrast than either would with any other color. And when we’re talking about color, contrast is generally a desirable thing.
