Holbein Extra-Fine Artists' Oil Colors are world-renowned for their exquisite colors. The highly pigmented colors are designed around the Munsell Color Standard for hue, value, and chroma. With 145 open stock colors to choose from, you are sure to find what you need. Holbein monitors the entire manufacturing process to ensure pigment purity, color tone, physical stability, and lightfastness. Pigments are ground up to 10 times to achieve uniform viscosity across the entire range of colors. You can count on Holbein Extra-Fine Artists' Oil Colors because they are manufactured with precision.