Opaque matte colour, perfect for creating bold, vibrant artworks. popular with designers, illustrators and commercial artists. Available in 88 colours. Perfect for creating bold, vibrant artworks. Winsor and Newton has been making our designers gouache since 1935 - a tantalising range of 88 opaque watercolours. Gouache paint is similar to watercolour paint, but it is opaque rather than transparent. Popular among designers, illustrators and commercial artists, our gouache paint is perfect for creating bold, vibrant artworks. All these tones are intermixable and you can pair them with our watercolours for a flat, matte colour effect. Developed for professional designers working on illustrations for graphic reproduction. It is also widely used in fine art painting, both on its own and with transparent watercolours.