"Petty Blue" painted vehicles were Special Order and officially "Corporation Blue" (think Plymouth sign) prior to 1972. In '72 it became a STANDARD color "TB3" (Dodge - "super blue" & Plymouth - "basin street blue") which should date to the '63 model year.
it's a solid color & non-metallic
I was going to say, I always thought that corporate blue was the official name of it. It seems like the name game is always going on.