Prussian Blue is a deep blue colour. It was made by German chemist Diesbach around 1704 making it the first synthetic blue pigment. It quickly gained favour as an alternative to genuine Ultramarine. Please note product packaging may vary from image.

Winsor & Newton Professional Watercolour is formulated and manufactured according to their founding principles; to create an unparalleled watercolour range which offers artists the widest and most balanced choice of pigments with the greatest possible permanence. Each colour within this wide and balanced spectrum has been selected and formulated to offer the greatest choice so that artists can use a unique palette that best suits their work.