Yeah SEM is Ok. I use some of their seam sealers and adhesives and bumper repair products. Only downside to the interior colors is they're all pre-packaged. So they aren't really an exact match. Which is fine if your doing everything.
Years ago just about every jobber had a full set of SEM tints and would mix your OEM color by formula. Today they use other brands such as DuPont.
A few years ago I bought some DK. Carmine Red interior parts from dixie monte carlo. The old dixie in NC. Anyway, a few months ago I decided to install them and paint my other moldings to match. So I mixed up the Dk. Carmine Red on my Dupont Chroma Premier system in the semi-gloss interior formula. The moldings match perfectly.