Question: what makes a person's favourite colour their favourite colour:? 

Answer: Every person has a different reason, but generally, people are attracted to a certain colour because of the way it looks (lol)... well, actually, it's mostly because of the meaning it has for them - meaning that can be given by a specific event that influenced them, or just by their instinct/personality.
This question from the Yahoo Q&A forum is categorized in the topic: Science & Mathematics