The colour of night sky or shadows, very dark, reddish, semi-opaque blue with strong tinting, also known as Indanthrone. Aversatile alternative to Ultramarine yet not as overpowering as Phthalo. (Series 7)
Pigment Classification: Organic
Color Index Name: PB 60
Color Index Number: 69800
Chemical Description: Indanthrone
Opacity/Transparency: Semi-Transparent
Lightfastness Rating: I
Permanency: Excellent
Munsell Notation Listing: Hue 7.5 PB Value 1.25 Chroma 3.3
Gloss Average: 94.74
Viscosity Range: 400-1000 CPS
CIE L*a*b* Values: L*24.44 a*5.02 b*-6
Tint Strength: 67.09
