Oooh, she's so evil, I even made another vector of her! This vector, in comparison to my previous, not only works better as a T-shirt graphic, but these are what I believe to be her official colors. I used a flash game from a Finnish website to grab ever color, except for her eyes and eye highlights. That I'm still guessing at.
This was vectored from one of those coloring pages that Hasbro put out recently. I believe these to be his official colors as they were taken from a screenshot present in the story gallery for Applebuck Season. This would definitely serve as a great color guide, or a Team Fortress 2 spray, or a T-shirt graphic, or what have you.