Product Description This organic semi-transparent pigments, with high-staining properties, yields a very clean, vibrant mixture. The Phthalo Green Blue Shade and Hansa Yellow Light used in this formulation gives it excellent lightfastness. ASTM Lightfastness Rating: Very GoodTransparency: Semi-transparentGranulating: NoStaining: Low Dan Smith started his business in 1976, dedicated to bringing the highest quality inks to the print-artist community. In 1993, Dan set out to create a line of professional watercolors with one goal in mind: to bring the same high-quality color to the watercolor artist as he had to the printmaker. After extensive formulation and artist testing, the first 27 DANIEL SMITH Extra Fine Watercolors were introduced to the market with much acclaim. Watercolorists were impressed with the high pigment load and the detailed product information on each tube. Word of mouth endorsements soon made DANIEL SMITH a familiar name with watercolor painters. Wet Paint is stocking the entire line of 221 colors of DANIEL SMITH Extra Fine Watercolor. The sheer range of possibility they offer is endless and unparalleled in the industry. The amazing selection spans the spectrum from the historical and natural earth colors (including the unique PrimaTek Series made with authentic mineral pigments), to the brightest, boldest colors modern technology has to offer. While they are American-made paints, their pigments come from the world over: everywhere except Antarctica and we bet they have someone looking there too. Color shown here for reference only.