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Ink Institute

Circular Line

Warm tones#9BAF2E

Taipei-made dye inks that bottle Taiwan's hidden landscapes, flowers and cat-filled daily life.

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Specs

Color familyWarm tones
Approx. hex#9BAF2E
SheenNot typically noted

Paper & pairing

Warm tones (oranges, yellows, ambers) show strong contrast between light and dark areas of each stroke, which is part of why they're popular with broader nibs. This ink will behave predictably on most fountain-pen-friendly paper. Cheap, highly absorbent paper (standard copier paper) will dull any ink's saturation and can cause feathering or bleed-through with wetter nibs.

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About Ink Institute

Ink Institute is a Taiwanese fountain pen ink line created by Juspirit, a stationery company in Taipei. Its inks draw on Taiwanese landscapes, flora and everyday life, released in themed collections such as Taiwan's Secret Land, the flower-inspired Meander series and the Cat Daily series. The brand emphasizes well-behaved dye inks that are easy to clean and beautiful on paper.

Taiwan Founded 2017
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Storing and using the bottle

Bottled fountain pen ink has an effectively long shelf life when kept capped and out of direct sunlight: most inks remain usable for years. The main risk isn't the ink spoiling, it's a pen sitting inked and unused for weeks: that's what causes clogs, not the ink's age.

Frequently asked questions

What color family is Circular Line?
Circular Line falls into Inktend's warm tones family based on its typical swatch color.
Does Circular Line have sheen?
Circular Line is not typically noted for sheen. If you want that effect, browse similarly colored inks tagged with sheen in the ink library.
How should I store a bottle of Circular Line?
Years, easily, as long as it stays capped and out of direct sunlight. The thing that actually shortens an ink's usable life is sitting unused inside a pen, not sitting on a shelf.
What paper works best with Circular Line?
It behaves predictably on most fountain-pen-friendly paper. Stick to something reasonably absorbent-resistant, since cheap copier paper dulls saturation and can feather.

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Color shown is a close digital approximation of a typical swatch, not a calibrated color match.