Good luck with that. It's a hypersilver. The closest I could find was the color on some Infiniti cars. I ended up bringing my wheels to prince wheel services in North Carolina. They fixed the butcher job the local wheel refinishers did.
On page 41 Crystal Titanium is listed as a finish option for the OZ Ultraleggera wheels. Being that recent (and maybe still a current finish), perhaps OZ could provide more specific information if needed. Or, if we're really lucky, possibly touch up paint to match...🤔..wouldn't that be nice.