Winsor & Newton Artists' Oil Colour is celebrated globally for its purity, quality, and reliability. This top-tier oil paint uses the purest pigments for bright, clean colours and superior mixtures. Known for its buttery consistency, it can retain brush or palette knife marks or be thinned into the finest glazes.

Cobalt Deep Blue is the darker red shade of its sister pigment Cobalt Blue. It was discovered in 1802 by French chemist Louis Thénard as an alternative pigment to the expensive lapis lazuli pigment. Series 5.