What considerations pertain to matching or contrasting ceiling and wall paint? My house was built in 1949. I am about to paint a large living room with wall paint that is oatmeal-colored. The upper walls cove toward the ceiling with a border that sets off the ceiling from the walls. The ceiling plaster has a dated-looking sponge-like texture and is now painted white. Shadows and light cast upon it from the large window are not an attractive feature of the room. Is white paint the best way to de-emphasize the ceiling, or should I paint it the same color as the walls? Any other ideas?