What about pink... it has not been used I believe, like a darkish pink. I know it's girly but I think it will be good and it's the only readable colour that I can think of and has not been used?
I say we try the dev color. They are not online here often and it wouldn't clash with anything else. I also really like the color.
I vote indigo. It's really easy to read and since devs don't get on very much, it won't clash with them
I've always been a fan of the light green. Then again, I never really liked the whole idea of a donator chat in the first place, I thought everything was supposed to be the same for users who have donated and users who haven't? (Aside from the donations that is.) But oh well, that's just me.
Aside from that, something that has happened since before donator chat even existed. But that's a given.