Winsor & Newton : Professional Watercolor : 5ml : Cobalt Blue

Series number: 4 Chemical description: Cobalt Aluminate Colour index name: PB 28 Colour index number: 77346 Permanence rating: AA ASTM lightfastness rating: I Transparency/Opacity: ST Granulating/Staining: G The 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 in watercolor, ie. granulating, staining or even wash. The resultant color spectrum ensures the largest number of colors can be mixed from the range.

The optimum brilliance of every color in the Artists' Water Colour range is unparalleled by any other watercolor. Remarkably, this brilliance is combined with high permanence.

Please note: due to trading agreements we are unable to supply this product outside of the EU. However, we don't want to disappoint anyone, so please feel free to use code USA10 for 10% off your first order on any other brand.