Ultramarine Blue is cooler and more of a true blue than the more saturated French Ultramarine. Temperature aside, both blues have equal permanence, lightfastness and transparency. Ultramarine Blue is slightly less granular in concentrated washes. For less saturation, sedimentation and cost, use Ultramarine Blue straight, or mix with a cool red for dark, effective neutrals.
Pigment: PB 29 | Series: 1
Lightfastness: I – Excellent
Transparency: Transparent
Staining: 3-Medium Staining
Granulation: Granulating