Pitt Artist Pen Brush India ink pen
ultramarine
ice blue
cobalt blue
light indigo
phthalo blue
skyblue
Polychromos colour pencil
120 ultramarine
144 cobalt blue-greenish
146 skyblue
143 cobalt blue
157 dark indigo
110 phthalo blue
140 light ultramarine
145 light phthalo blue
152 middle phthalo blue
Albrecht Dürer watercolour pencil
helioblue reddish
middle phthalo blue
Oil pastels
cardboard wallet of 36
Goldfaber Aqua watercolour pencil
light ultramarine
151 helioblue reddish
247 indanthrene blue
246 Prussian blue