Professional Watercolour is recognised for using only the purest pigments to ensure quality and permanence. Accessible but uncompromising on quality Available in 40 colours, across tubes and pans. Formulated for transparency and lightfastness, Cotman watercolours are affordable without compromising on quality. Fine art pigments Cotman watercolours uses fine art pigments with reduced pigment load than the professional watercolour range, making them an affordable choice while still uncompromising on quality. Ideal transparency Formulated to create uniform consistency, the transparent quality of Cotman watercolours are perfect for new users. Lightfast and permanent Rated aa and a for excellent and good lightfastness, Cotman watercolour gives artist the reassurance expected from a quality watercolour range.