This Pigment Alpha Blue is a synthetic organic pigment that was first developed in the 1930s as a replacement for the more expensive and less stable Ultramarine Blue pigment. Alpha Blue has a strong tinting strength and excellent lightfastness, meaning it is resistant to fading when exposed to light. It is commonly used in a variety of applications, including printing inks, paints, plastics, and textiles. This Pigment Alpha Blue's strong color and durability make it a popular choice for artists and designers who require high-quality blue pigments.