Traditional dye-based ink delivers deep, vibrant ultramarine blue for expressive writing
Sheening effect on high-quality papers enhances visual appeal
Compatible with standard converter refills for convenience
50 ml volume provides approximately 62 standard 0.8 ml refills
Works with a range of papers, pulling color toward strong medium blue tones
Summarized by Shop
Ultramarine is part of the Keystone Formula fountain pen ink line, our traditional dye-colorant ink. This hue will produce a sheening effect when saturated on high-quality papers like Tomoe River and Midori MD. Our writing sample in this listing was made on 68 gsm Tomoe River paper. Color will pull toward a strong medium blue with more so
Ink Type
Dye-based
Color
Ultramarine blue
Volume
50 ml
Refill Estimation
62 standard 0.8 ml converter refills
Recommended Paper
Tomoe River (68 gsm), Midori MD
Sheen
Enhances on high-quality papers
Summarized by Shop
5.0
3 ratings
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1
This ink is my new favorite. I love the quality of it, and the color is beautiful on any paper.