Right, you should be able to work out how it works... enter a colour into the 'Team' box, click Preview to see if it's recognised, Submit to commit yourself to this folly. Oh, and we may as well play a game whilst we're at it: Teal.
I really don't think you're trying hard enough: aquamarine [Raak] I expect you'll be able to track down the list of colours I've purloined without too much difficulty :) I'd like to leave it as a challenge at least until the game ends. As to why I don't just copy the colours - I'm not sure which browsers understand which colour names, so thought it was easiest to generate the hex that they can all speak. (Plus, none of them know Hampster).