I've got this. When I was a little girl my family thought i was crazy and would ask me what colour each number was as like a whimsical little trick, i think the thought i was just eccentric, I was shocked to learn that people thought it was strange. Then like 5 years ago my friend saw a documentary on it and rung me up to say "hey ur not as crazy as we thought"
LoL
1-white
2-yellow
3-bright green
4-pink
5-red
6-blue
7-orange
8-Dark green
9-black
10-grey

and it goes on, letters as well