Daniel Smith Extra Fine Watercolor Sticks offer the same superior intensity as the Daniel Smith line of Extra Fine Watercolor paints with the convenience and portability of half pans. Each stick is packed with pure pigment and produces vibrant strong color when wet or use them dry to build texture. They’re highly reactive with water and release rich creamy colors. Phthalo Green Yellow Shade is a bottle green. In concentrated to diluted states it is transparent and super- staining. Organic and absolutely lightfast. Phthalo Green YS is a warmer basic green.