My car was sprayed in Sherwin Williams. The painters used my original paint chip sheet and my body matches the chip pretty much dead on. But that doesn't mean it would mach an original paint car. Even if you found a car with it's original paint, it would no longer match the original color after so many years.
Without another car the same color to park side-by-side, who would be able to tell the slight difference?
I get plenty of compliments on my color:
__________________

1967 Firebird 326 H.O. Conv., M3 floor shift, 3.36:1, Montreaux Blue/Parchment, Dual factory traction bars
2005 IBM GTO M6 - One of 347
1984 Yamaha FJ1100