The list below outlines primary colours for three or six colour mixing systems in the Winsor & Newton watercolour ranges.
Professional Watercolour three colour system
- Winsor Lemon
- Winsor Blue (Red Shade)
- Permanent Rose
Professional Watercolour six colour system
- Winsor Lemon
- Winsor Yellow
- French Ultramarine
- Winsor Blue (Green Shade)
- Permanent Rose
- Scarlet Lake
Cotman Watercolour three colour system
- Lemon Yellow Hue
- Ultramarine
- Permanent Rose
Cotman Watercolour six colour system
- Lemon Yellow Hue
- Cadmium Yellow Pale Hue
- Ultramarine
- Intense Blue
- Permanent Rose
- Cadmium Red Hue