Inktend / Ink library / Cobalt Blue
Graf von Faber-Castell
Cobalt Blue
A premium line from the Faber-Castell family brand, with muted, refined tones aimed at the higher end of the hobby.
Specs
About Graf von Faber-Castell
Relaunched in 1978 as Faber-Castell's premium line, Graf von Faber-Castell focuses on fine materials — wood, precious resin, platinum-plated fittings — aimed at the higher end of the hobby.
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
Similar shades
Color shown is a close digital approximation of a typical swatch, not a calibrated color match.