Pitt Artist Pen Metallic 1.5 India ink pen
blue metallic
Ecco Pigment Fineliner
0.1 mm, blue
0.5 mm, blue
0.7 mm, blue
0.3 mm, blue
Pitt Artist Pen Brush India ink pen
ultramarine
dark indigo
indanthrene blue
ice blue
cobalt blue
phthalo blue
skyblue