Indigo / Watercolour 5mL / Winsor & Newton

Professional Watercolour Indigo Indigo is a deep blue pigment that can range from dark black to pale blue. Originally extracted from plants similar to blue woad used by the ancient Britons, it was synthesised in 1878 in Germany. It is one of the oldest blue pigments used universally. Specifications SKU: 50823802 Colour Number: 322 Lightfastness: Very Good Opacity: O Series: 1 Pigment Code: PB15,PBk6,PV19 Granulation/staining: Staining Permanence: Permanent   Winsor & Newton Professional Watercolour are still formulated according to their founding principles; to create unparalleled colours which offer artists the widest and most balanced choice of pigments, as it was in 1835 when William Winsor and Henry Newton introduced the first moist watercolours to the world. Their range uses only the finest pigments which is why they are known for their brilliance, permanence and strength of colour. With 79 single pigment colours, they offer the widest range of modern and traditional pigments. Formulated using the highest quality methods to achieve optimal pigment dispersion, their unrivalled transparency means every wash will remain vibrant and luminescent. 104 out of 108 colours in the Professional Watercolour range are rated AA or A for permanence to ensure that the colours used today will appear the same for generations to come.