Pitt Artist Pen Metallic 1.5 India ink pen
blue metallic
Colour Grip colour pencil
Ocean blue
Sky blue
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