Sr/SRi/SX steel wheels, Original Colour?

[Balley]

I am going to restore my Nova to make her look more original. Does anyone know the exact colour code for the centres. I know its a dark metallic grey but that is all I know.

Cheers Dan

[moffat]

i used hurricane grey looked spot on bud

[Balley]

aren't they metallic standard tho?