Cotman Watercolours are a range of moderately priced colours that have been carefully selected to offer a wide colour spectrum within a uniform price. A range, which is suitable for both amateur artists and the accomplished artist who requires large volumes of colour at an economical price.The range of 40 colours is chosen according to mass tone (colour from tube), undertone (bias of colour when in a thin film), colour strength, relative opacity and the character of the pigment itself. The resultant colour spectrum ensures the largest number of colours can be mixed. Cotman Water Colours by Winsor & Newton Winsor & Newton Cotman provides a comparatively inexpensive selection of good quality watercolours. Colours include both useful traditional pigments, and reliable synthetic colours that replace some of the more rare and expensive pigments. Cotman colours represent superb value and are compatible with acrylics and gouache to produce combinations of opacity and transparency.Colours displayed onscreen on our website are representative only and the actual colour may differ slightly.