Winsor & Newton Cotman watercolour 327 Intense blue (Phthalo blue)

Intense Blue (Phthalo Blue) is a deep intense blue that forms an inky blue-black when undiluted. It is made from the modern pigment phthalocyanine, which was introduced in the 1930s.

Accessible but without compromising on quality
Available in 40 colours. Formulated for transparency and lightfastness, Cotman Watercolours are accessible without compromising on quality.

Fine Art pigments
Cotman Watercolours uses artist quality pigments with a lower pigment volume than the Professional Watercolour range, making Cotman Watercolours an accessible choice yet without compromising on quality.

Ideal transparency
The transparent quality of Cotman Watercolours has been formulated to create a uniform consistency and is perfect for new users.

Lightfast and permanent
With ratings of AA and A for excellent and good lightfastness, Cotman Watercolour gives the artist the reassurance expected from a high quality watercolour range.