Winsor Emerald is a bright clean opaque emerald colour. First documented in 1822, it originally contained arsenic, and is said to have killed Napoleon as his wallpaper in St Helens was emerald green. Winsor & Newton have created a non-toxic version closely matching the original colour.

Cotman Watercolours use fine art pigments with reduced pigment load than the Professional Watercolour range, making them an accessible choice while still uncompromising on quality. Rated AA and A for Excellent and Good lightfastness, Cotman Watercolour gives artist the reassurance expected from a quality watercolour range.