What color do people like the most?

From my information, most people like blue.

This may be because of the different hues blue in general has. Light blue signifies the sky, which always has a calming effect on people, and a navy blue might signify a calm ocean. Blue naturally has a soothing affect, and that may be the reason why.

Blue is also very familiar. Most of the time, you cannot go into an area without seeing at least one shade of blue.

In conclusion, blue has many affects on people's emotions. It may make them feel comforted, welcomed, cheery, playful, etc.

Does this make sense?
At the moment I have seen very many young people (6-14ish) Wearing Purple but many people wear black (which is a shade not a colour) I hope this helps!