Hakka Blue-Black is a blue-black ink with dark red sheen.
Mitasanshodo's Sumi collection are fountain pen inks inspired by traditional Japanese sumi inks created in collaboration with Kuretake. The colours appear mostly black in full concentration and can be diluted to show the true colour behind each "black". These highly pigmented inks have pleasant scents to match each colour and packaged beautifully in their signature Edo Kiriko glass bottle designs.
