1) Open a conversation window with a contact.
2) Type /nick then put a space!
3) Press Control+K.
4) Select the colour you want your name to be.
5) Type the name you want your name to be name.
6) Press Enter
If you want your name to be multiple colours, then just put your cursor where you want the new colour to start, and repeat Steps 3 and 4.
/ 
