They're all staff, so why the different coloured names?
Purple = Administrators ; Site owners, here to help with whatever you need!
Blue = Global Moderators; Here, there and everywhere! These guys are watching over the whole forum.
Green = Moderators ; Here to help you out in the roleplay and social sections, respectively.
And here they are in name and title:
Username Title Short Review Merry Admin of Awesome Administrator Kris Arch-angel of Epica Administrator G My Son; My Sun. Administrator/Robot Froggy The Froggiest Administrator/Queen of Spam Scottie The Big Meme Roleplay Moderator ｒａｂｂｉｔ heaven can't help me now Social Moderator InfraredHero The Invisible One Roleplay Moderator Storm Poppa Squirrel Roleplay Moderator