Van Gogh Watercolour Half Pan - Dusk Violet - Series 1 (VGWHP560) Van Gogh watercolours are bold, intense, and beautifully transparent colours. These pure, easy to mix paints have the highest degree of lightfastness, allowing you to experiment with these lively colours. The wide range of 72 colours is available in both tubes and pans. Colour Index No.:PBk11/PV23 Transparency: Semi-Opaque Lightfastness:** Series: 1 Notes: Granulating colour *** = at least 100years lightfast under museum conditions. ** = 25-100 years lightfast under museum conditions. * = 10-25 years under museum conditions. Most orders will be with you inside of 12 days, although some may take up to 15 working days. If you have any questions, please use the address on our contact page