Colors on forum's signature

Hello guys, i'm new old CF player but i'm new to the forums, i've seen Colors on their

signature, using BB codes, or HTML, when i tried to put some colors on mine, it own't let

me because the Simple BB codes are disable i took Web design class for about 3 weeks

so my knowledge about W.D. is very restricted, can any of you please tell me How to do

add colors with SUPER RESTRICTED HTML using.

thanks a lot