Goldfaber Aqua watercolour pencil
ultramarine
light ultramarine
cobalt blue
helioblue reddish
light blue
Pitt Artist Pen Brush India ink pen
dark indigo
indanthrene blue
ice blue
light indigo
phthalo blue
skyblue
Albrecht Dürer watercolour pencil
light phthalo blue
cobalt blue-greenish
middle phthalo blue
Prussian blue