A6B6 interior is kinda rare.
KB5, or B-5 "Lucerne Blue Poly" or "Lucerne Blue Iridescent"
If you find the 2K paint in the correct color, paint both the package shelf and dash frame, together. It will match and look sexy. But if you're looking to touch up and have it match 50 year old paint, well, um.... we can dare to dream.