There's not one.
They have black and red, as well as the bare aluminum. If you want blue, you'll have to do that yourself.
As for what paint, I have no idea. but you'll need metal primer, as that is bare aluminum you'd be painting. The good thing is that you can remove the fans and whatnot and just paint the whole thing at once.
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... 14 Nov 1945 - 4 Sept 2009