Ecco Pigment Fineliner
0.1 mm, blue
0.5 mm, blue
Pitt Artist Pen Calligraphy India ink pen
indanthrene blue
Pitt Artist Pen Soft Brush India ink pen
light indigo
0.7 mm, blue
0.3 mm, blue
Pitt Artist Pen Dual Marker India ink
ice blue
phthalo blue
skyblue
ultramarine