Interior Paint mix

I need to find someone who can come up with the mixture in PPG for a B-5 blue interior.

The body shops here are useless and say they can't get old interior codes and soemthign about a new european system etc etc.

So I went to a body shop supply store who will mix the paint for me and are a SEM dealer. But he only hast exterior paint codes.

I need to get some kickpanels, a-pillar trim and armrest bases painted.