Cotman Water Colors are a range of moderately priced colors which have been carefully selected to offer a wide color spectrum within a uniform price. A range which is suitable for both amateur artists or the accomplished artist who requires large volumes of color at an economical price. The range of colors are chosen according to mass tone (color from tube), undertone (bias of color when in a thin film), color strength, relative opacity and the character of the pigment itself. The resultant color spectrum ensures that the largest number of colors can be mixed