According to JC web site he has listed the filling. 1947-53 Chevy & GMC had a semi flat Gray-Brown with slight metallic. Also shows that in 1953 dash change more to a Charcoal slight metallic. I would have to say my 51 and the Radio grill that I have pulled out of a 50 is also be Gray Brown. I’m going to call today and see if they have a sample that they can send me
