Choose three or more different paint shades. Essentially, an exterior scheme has three major parts: field color, which dominates; accent color, which brings doors, shutters and other smaller areas to life; and trim color, used for window and door casings, roof edging, railings and other trimwork.
Ideally, the trim color should contrast strongly with the field color. If your main hue is dark, consider classic white trim or another pale shade. A light field color can look stunning with darker trim — like eyeliner for your home, it produces a crisp, dramatic effect. Feel free to go bold with accent colors, but don't go overboard. A door painted bright red or lemon yellow lends just the right hit of punch. Extending that same shade to the shutters and gables ... not so much