Pitt Artist Pen Metallic 1.5 India ink pen

blue metallic

Pitt Artist Pen Soft Brush India ink pen

dark indigo

Pitt Artist Pen Brush India ink pen

cobalt blue

Pitt Artist Pen Brush India ink pen

ice blue

Pitt Artist Pen Brush India ink pen

skyblue

Pitt Artist Pen Brush India ink pen

indanthrene blue

Pitt Artist Pen Brush India ink pen

dark indigo

Pitt Artist Pen Brush India ink pen

light indigo

Pitt Artist Pen Brush India ink pen

ultramarine

Pitt Artist Pen Brush India ink pen

phthalo blue

Ecco Pigment Fineliner

0.1 mm, blue

Ecco Pigment Fineliner

0.5 mm, blue