Really every single color looks good with white. For a classic look you could pair up black and white. If you are looking for more of a pop maybe do a bright color like pink or blue with white. White goes with ANYTHING(:
white would be a good contrast.
A white shirt.
in my opinion white or silver/ gold
white
White shutters go good with any color. You don't want something that's going to blend in completely with you house. If you don't want plain white get an off white. Something like Ivory or cream.
black
One of the best things about white and black is that any color can be used to accent them. Yellow goes great with black and white as an accent color.
Probably white or any color
White
black or white grey
White
red or white. either one is pretty and goes with that image