HRE Wheels touch-up paint for Tarmac color?

[Chuckster]

I was unable to find anyone that shared a way to touch up blemishes on the HRE Tarmac color. Unfortunately, I scraped a bit of the wheel color off on a jagged edge of a pothole today. I’m hoping someone has some guidance so I’m not resorting to trial and error color-matching. Thanks in advance.

[Chuckster]

I bought a couple different touch up colors. Will share research results.