For the most popular colour in 67, it is sure not seen that way in current samplings of cars.
Ifound myself looking for a current formulation for the "teal" used on PS pumps, all I had was a colour name from, I think, 62.
As I live in Oz, I approached PPG Australia, gave them the name, under something they have called the Global Access Program, they gave me a current formulation that could be taken to any PPG dealer, and mixed. Perfect match.
At the time, I was asked if I wanted it in BC/CC. I chose to have it in single stage. Got 2 rattle cans made.
I'm nearly a 100 percent sure that PPG was an OEM supplier back then.
For the extra credit, I've seen both, side by side, not real similar.