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.
Our popular Cotman Watercolours come in 48 colours. They are made with fine art pigments so are uncompromising on quality with good tinting strength. Available individually or in a variety of sets for all needs.