Colors are used everywhere. We love them. Africans like to dress with as many colors as they can find, we, on the contrast, seem to prefer clothes which don't separate us from our environment. Take the boring grey or navy blue suits clones are wearing.
To an alien who would feel somewhat the same as we do, he would see at us and think Africans love life whereas we hate it.
At least the men.
Women can wear any sort of bright colors, and when a man does it, say, wear a bright red skirt, he will still have a pecker, but people will think he puts it in an unusual place. Maybe trousers, or, pants, were invented in order so when a tent appears when a beauty walks by is not easily visible ? Wearing a skirt it probably would :-)
Even when a man is NOT queer, why does he restrict himself ? Do we men have such a low self-esteem ?
So - the further North you go, the bleaker people seem to appear. Colors follow temperament, so it seems.
Especially here in Central Europe. When you go to Scandinavia, Iceland and places like that, you see houses with roofs in any color you can imagine. Red, blue, green, whatever. Apparently they think that they have to brighten up their enivonment.
When you do the same in, say, Germany or Switzerland, the authorities will show up and say, no, you can't do that. It doesn't fit into the landscape. Huh ? I'd rather think that there is some mentality at work which does not want that people show their individuality. Also, here's the place of the clones, and, surprisingly, the Japanese Salariman is the most extreme example. No idea how that could catch on so far away from us !
Colors are life. My favorite color is a deep blue sea/sky. Because it's a quiet color. I also like red at times, which is an aggressive one. And on yellow I almost puke ;-)
Sports teams use colors to provoke an image of power when wearing red shirts. Mostly red. When you get angry, your face turns red.
When you're on the verge of drowning, you become blue. Hmmmmm LOL.....what's your favorite color ?