Picking a final color is going to give me a stroke!!

[Richio1]

How about purple with matte silver, like above, to tie in with the brushed wheels, etc.

I had the same wheels which, like you, I bought before finalizing the color scheme. Ended up changing the center and back of the hoops to matte black then hand brushed the outer hoops. Super easy to do with a red scotchbrite pad. Easy to maintain too.