My $.02 is DON'T try to match the color. On a computer screen the reds may look spot-on, but in person there are about 10,000 shades of red. The chance that the shade on your frame and the shade on your cage are a perfect match aren't great. Trust me, I speak from experience - it was a happy day when I ditched the non-matching blue cages on my Gios for plain stainless ones.

For your bike? You can't go wrong with black, those carbon ones are nice if you have $$ to burn.