For ME, the best is three-way black. Black body, black interior and black vinyl roof. However there were many good color combos for the 69 Chevelles/Malibus. One of the colors I didn't like in the past has grown on me a lot over the last 10-12 years. It's called "butternut." A very light yellow. Often seen with black interior and black vinyl top.
As for what color (for you), I'd say it's mostly "owner's choice." Maybe tempered with whatever the original color is/was. Some guys feel it's best to re-paint (restore) to the original color(s).
You can click here for the
1969 colors .
Edit by ME: Oops, sorry I just noticed you mentioned convertible. Well, I'd still go with a black convertible top. Obviously, I was originally writing about a SS coupe/hardtop.
Bill.