Add to this the servers tip-messages which I believe are in the same colour. It's ok for both wilderness and tips, but I think for most people the partychat is (alongside the globalchat and whispers) the one chatchannel they wouldn't want to miss a message in. So I'd guess a different and maybe easier to spot colour would be very helpfull. Red should of course be left for the really important servermessages and -announcements, but orange would be a nice signal colout that would be easy to spot even if not looking at the chat (similar to the colour of whispers that easily catch the eye).