W&N Cotman watercolour range offers comparatively economical selection of good-quality watercolours. They are affordable but uncompromising on quality and possess good transparency excellent tinting strength and good working properties.

Indigo is a deep blue pigment that can range from dark black to pale blue. Originally extracted from plants similar to blue woad used by the ancient Britons, it was synthesised in 1878 in Germany. It is one of the oldest blue pigments used universally.