Multi-Colored Usernames?

[Chemical Accident]

I've tried everything I know to try to get "Multi-Colored" usernames, but can't figure out a way to achieve this without having to use an image :/

I know there's a Javascript to make your username have each character a completely random color, but I need it to where I can pick the specific colors. What I'm trying to achieve is "DevilsParada89"

Help is appreciated!