Pigment Name: Indanthrone Blue
Lightfastness: ASTM I - Excellent
Opacity: Semi-Transparent
Grind: Fine
Series 7

A very dark, semi-transparent color, sometimes referred to as Anthraquinone Blue. With a Lighfastness rating of I, it makes a good alternative to the fade prone natural Indigo, which it was originally meant to replace. Indanthrone is a strong mixing color.