Winsor & Newton Professional Watercolour - Cobalt Blue
Cobalt Blue is a clean blue pigment. It was discovered in 1802 by French chemist Louis Thénard as an alternative pigment to the expensive Lapis Lazuli blue pigment.
Professional Watercolour is recognised for using only the purest pigments to ensure quality and permanence. Formulated using the highest quality production methods to achieve optimal pigment dispersion, the Professional Watercolours' unrivalled transparency means every wash will remain vibrant and luminescent.