Maybe.
We can't add blue because blue is staff
I think the green colors would be cool. Not the lime, too bright, but the darker green, add it to legend chat.
~ @Muunkee
While green would be nice, the darker green would match staff name tags and be clunky. I think legends should have orange, white, purple, and yellow. But then again my ideal chat system would be so that supremes have cyan, ults have bright blue, helpers have yellow, mods & smod have orange, admins have bright red (as it is) and ambassadors have grey. I like the idea of having a flame where when you go higher through the staff ranks, the flame symbolizes that your job gets harder and your passion for the server is deeper. Once you become an ambassador, you quit your job as a staff member, but the ashes show the huge devotion you did and still have for the server. Besides, I'm sure many people would be happy with having a blue chat color.