I think a nice gunmetal, like the color that comes on all the new Lexus F-Sport wheels would look nice with Silver Ignition. Which I think is identical to the secondary color on the OEM wheels, so if it got rid of the shiny silver finish.
Something like this
These are F-Sport Lexus 17x7 5x100 ~$200 each /w available Toyota/Subaru/Lexus TPMS