Surely you've noticed that all CoS members (regardless of rank) are blue (as yours and my names are) and all nonmembers are yellow?
Red is used by administrators, and at one time moderators were colored green (though this has since been changed).
Oh, and there may be the odd pink floating around, that would be someone who was verified as a CoS member prior to the reverification of all CoS members years ago, but never bothered to reverify their membership. Pink was used for CoS members prior to that.
"The devil I'll bring you," answered Hagen. "I have enough to carry with my shield and breastplate; my helm is bright, the sword is in my hand, therefore I bring you naught."