Gray is a timeless color as it adds depth to a room and the darker shades of gray colors also add warmth. Due to the versatility of shades of gray colors pairing up with other popular colors, it is deemed to be a color that truly stands the test of time. Different shades of gray colors are being used to paint interior walls, as it is so much easier to maintain and clean, especially in households where children and animals may live. Shades of gray colors seem to be the better alternative to other neutral colors such as beige or cream.