Inktend / Ink library / Dark Blue

Oaso

Dark Blue

Blues & navies#7E8DA0

Oaso is one of the 713 brands in Inktend's built-in ink catalog.

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Specs

Color familyBlues & navies
Approx. hex#7E8DA0
SheenNot typically noted
BrandOaso

Paper & pairing

Blues and navies are the most broadly "safe" fountain pen colors: legible, professional, and unlikely to raise eyebrows in an office. 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 Oaso

Oaso is a Chinese pen brand offering affordable fountain pens and bottled inks aimed at students and everyday writers. Its pens, including retractable models, feature stainless steel nibs and are sold widely through platforms such as Taobao, JD.com, AliExpress and Amazon.

China Founded Unknown
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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 Dark Blue?
Dark Blue falls into Inktend's blues & navies family based on its typical swatch color.
Does Dark Blue have sheen?
Dark Blue 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 Dark Blue?
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 Dark Blue?
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.