Without seeing the home and the other surfaces that are present it is difficult to make a suggestion. I would like to take a look at your window color, roof color, do you have brick or natural stone? Selecting a color that works with your all of the elements including the main body color and trim color will be your best bet. A color that often always works is black. For a unique look consider a lighter or brighter base color and applying a glaze or wash over the top.

Good luck!