The grey is genius, looks great and hides the dirt pretty well . I think other colors look good but white would be a hassle.

 

Wheel Enhancements (sponsor to the right>>>) shows the factory turbo wheels with a chromed option. While I'm not the biggest fan of chromed rims in general, I think the OEM turbo's might look good in that option and satisfy your concerns as well. It removes the grey, dresses up the wheel a bit and looks unique. Mind you, I've never seen these in person, but the picture looks nice.

I also saw in a Robb Report, an ad for black chromed factory wheels. They were more of a titanium or "smoked chrome" look, but wonder how that would look with your guards red exterior.

I know...the flame throwers against chrome will strike!!!!!

 

An example attached.