IMO i say red. But then again black and red are my favourite colours. I personally am not a huge fan of colourful rims (red, green, blue, etc). I think a nice black rim with a stripe of what ever colour you decide with is nice, or like others said a gunmetal colour. Depending on the rims you can also get away with gold/bronze rims like "POGIS" car. I have never seen it personally just going based on the pic ^^^ (***in sick car, looks amazing).