Suzuki 2 Strokes

I am about to have my (titled as 1965, serial number 202) T20 painted. The bulk will change from (a lousy resprayed) blue to black (unable to discern original color), but I can't seem to find a thread that describes a color match for the gray fenders. I want it to be as correct as reasonably possible, any experience/advice is appreciated...

thank you paul miller, maybe somebody else can benefit...

'gm had a paint code in the late 80"s called 13S that was spot on'

Dupont match easily found