I like Blue. It's a really nice color. I remember back then when I was a kid, I really like blue because it's the color of Stitch.
Based on the psychology, most people's favourite colour is: Blue.
It is seen as a calming colour and more of the things people see in the day are blue! Such as: the sky, the ocean, ETC...
Colours, such as: Red and Bright Yellow are seen to be resembelances of fire and so make people less calm.