Turbine Bronze

2 of my favorite mid 60's colors are turbine bronze and any of the turquoises.

Keep in mind that EL5 butterscotch is a 1969.5 color.

I'm not real big personally, with HIP colors on pre-HIP era cars (especially limelight on anything before 1970), but I think you could get away with that one (butterscotch on a 67 Val, that is).