Paint Chipped Off — 20-inch Alloy Wheels, Black Sport Finish

[rovo]

Hello, I have a Telluride SX with the Black 20-inch Rims. I just noticed a large piece of paint has chipped off. It's closer to the nuts than the edge of the rim. We don't believe it's been curbed. Has anyone else had this happen?

Any suggestions on which paint will match it if I try to touch up myself? Is it Gloss or Satin?

Thank you.