1 x 15ml tube Daniel Smith Watercolour - Ultramarine Blue (106) Series 1
Ultramarine Blue plots cooler and bluer 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, for vibrant crayon-like colour or mixed with a cool red for dark, effective neutrals.
?ASTM Lightfastness Rating: Excellent