Polychromos colour pencil
120 ultramarine
144 cobalt blue-greenish
146 skyblue
151 helioblue reddish
143 cobalt blue
157 dark indigo
110 phthalo blue
140 light ultramarine
145 light phthalo blue
247 indanthrene blue
246 Prussian blue
137 blue violet
152 middle phthalo blue
