Mid-Century Exterior Paint

We've been talking about painting the exterior trim of our house. Neither of us is in love with the green.
We're going to leave the white because 1) we like it and 2) we don't want to turn this into a giant project. So I've been looking to color schemes, based on the main color of white, that look good and fit the time period of our house.

A soft or mid-tone grey with a door that pops could be really interesting.
Blue is a strong contender.
Black and white is classic, but might be a little stark.
We'd love to get some more suggestions.