A lively cobalt blue This strong cobalt blue, with its dose of black pigment, takes its name from the dark sticky tar often used in roofing. Pitch Blue has an almost violet feel to it & is extremely lively in south facing rooms, especially when contrasted with bright shades such as All White. However, it looks more sober & rich when used in areas deprived of light or those lit in the evening by candles. This product is archived & made to order, which means samples aren't available & orders cannot be refunded or returned.