There’s no need to stick to one color. Paint the frame and interiors in different shades or in contrasting colors for an impactful look. Designer Alison Martin used two shades of green in the Virginia library of Elizabeth Locke, while in his own Kansas City, Missouri, home, David Jimenez paired chocolate-brown walls and bookcases with bright white trim. Bring your art display to the next level by using a shade that highlights nearby pieces. Burgundy paint picks up shades in a portrait attributed to Thomas Gainsborough in a Washington, D.C., home designed by Stephen Shadley, and the black bookcases in Daphne Guinness’s Daniel Romualdez—decorated apartment are the perfect complement to the David LaChapelle photograph.