My color theories (not approved by Dept. of Homeland Security or Martha Stewart Living, INC.)
Purple is the weirdest color.
White is the most suicidal, no doubt about it.
Silver is the classiest but after time begins to look gray, not silver.
Black gets dirty so easily
Green is the slowest color
Blue is the rarest, at least up here
Gold...rhymes with old...need I say more?
Red is hard to match to your outfit, if you've got enough Bonnies or outfits, either one, to be concerned with that sort of thing.