The reason I want the paint code is to match the OE caps I have. I don't want to repaint them and have to make up new 'H' decals. I bought some 02 wheels from Sonic years ago and the Washi Gray centre caps were way off the darker painted wheels (looked naff), I believe the wheels were Quantum Gray.
A while back I went to a paint shop to see if I could match the caps, I said I thought they were Pewter Gray but it looked way off...