Ultramarine Blue is an inorganic pigment whose color has been classified as Pigment Blue 29/C.I. 77007 by the Color Index System. Chemically it is a sodium aluminum sulphosilicate. This pigment is the synthetic form of a mineral called Lazurite. 
Ultramarine Blue has got a clean and bright reddish blue shade. This makes Ultramarine Blue different to any other blue pigment of the market and due to this fact very attractive.

In addition to this very specific reddish blue shade, Ultramarine Blue is an excellent white corrector that neutralizes yellowish shades. This whitening effect is widely appreciated in many fields of application e.g.plastics, coatings, detergents.