Inktend / Ink library / Blue-Black
Platinum
Blue-Black
Blues & navies
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A Japanese brand whose Classic ink line is designed to resist clogging, pairing naturally with Platinum's slip-and-seal pens.
Specs
Color familyBlues & navies
Approx. hex#263C5E
SheenNot typically noted
BrandPlatinum
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About Platinum
Founded in Tokyo in 1919, Platinum is one of Japan's "big three" pen makers, best known for the slip-and-seal cap technology that keeps a pen from drying out for months.
Japan
Founded 1919
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Paper & pairing notes
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.
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 Blue-Black?
Blue-Black falls into Inktend's blues & navies family based on its typical swatch color.
Does Blue-Black have sheen?
Blue-Black 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 Blue-Black?
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.
What paper works best with Blue-Black?
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.
Similar shades
Color shown is a close digital approximation of a typical swatch, not a calibrated color match.