It can be very helpful to borrow a paint deck from a paint store and go around looking at homes that you like in your area. Obviously you need to select a paint color significantly lighter than the current one, but don't get carried away. Medium paint colors will look lighter on the exterior of a home than they look in the paint deck.

So look at houses and with your paint deck in hand, get up right next to the house to check out what color it is. It's, of course, polite to ask the owner if you can do this, as you do not want to get shot or arrested. The owners may even share with you the paint color they used.

If you go with a light color, then you might want a somewhat darker color for the trim, and vice versa.

Best of luck, and if you want to double check with us, tell us what colors you are considering. BTW, blue and gray doesn't do it for me, but that's because your roof looks somewhat brown to me. What color is it really?