Albrecht Dürer watercolour pencil
phthalo blue
ultramarine
blue violet
cobalt blue
skyblue
helioblue reddish
dark indigo
light phthalo blue
light ultramarine
cobalt blue-greenish
middle phthalo blue
Metallics marker
colour ice ice blue
Pitt Artist Pen Metallic 1.5 India ink pen
blue metallic
Prussian blue
indanthrene blue
Goldfaber colour pencil
light blue
Pitt Artist Pen Brush India ink pen