NeverEnough, I don't know if this will help, but this is a close up of the New Camaro's rim with a "Red Line" applied to the outer edge of the rim.
I saw it in person, and on a low profile tire, I thought it looked pretty good.
I don't know why "blue" wouldn't look good as well.
http://www.edmunds.com/insideline/do.../photoId=39981