this is what came back on my PPG computer
W30A3702 / 13564 - DK BLUE POLY (LG), MONITOR DK BLUE POLY (FG)
This is a 1968 GM interior color it may be the same as what you have but im not sure. It can be mixed in Envirobase and Global
Now Code 22 from Ford comes back as 22 / 12989 - MED BLUE POLY this is a 1966 Mustang trim Color which I believe is what your looking for can also be mixed in Envirobase and Global