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Omoihide
Okamotoya is one of the 713 brands in Inktend's built-in ink catalog.
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Paper & pairing
Browns tend to photograph and scan a little darker than they look in person, worth testing before using one for anything that will be digitized. 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.
About Okamotoya
Okamotoya is a long-established Japanese stationery and office supply company founded on June 2, 1912, in the Toranomon district of Tokyo. Alongside its office design and supply business, it runs a historic stationery store and has released original fountain pen inks, including "Tora-iro" developed with local Toranomon workers and inks created together with schoolchildren in Nakafurano, Hokkaido.
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
Similar shades By colour distance
Color shown is a close digital approximation of a typical swatch, not a calibrated color match.