This info really ought to be in Archives by now, but :
Dash, column, ashtray, glovebox door - flat (no gloss) textured suede finish, called Baltic Blue, old PPG # 13705
Door frames, quarter metal moldings, headliner side mldgs - B7 for B5 interior, though called Bright or Thunder Blue, old PPG # 2019 and/or 13693
DuPont & R-M also have of course their own #s.
Plastic parts were molded in color, and don't quite match the other colors.
Those old #s are hard to get cross-referenced unless you find a paint jobber who's been around a long time.
More modern colors can be tinted to match, but it all takes an experienced person & "eye".