Inktend / Ink library / Edge Blue
Edge Blue
Dr. Ph. Martin's is one of the 713 brands in Inktend's built-in ink catalog.
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.
About Dr. Ph. Martin's
Dr. Ph. Martin's is an American maker of liquid color founded in 1934 and produced by Salis International, Inc., based in Oceanside, California. The company is known for vivid liquid watercolors, dyes and inks, including the Radiant Concentrated, Hydrus, Spectralite, Iridescent Calligraphy and Bombay India Ink lines. Its bottled colors are used by artists, calligraphers and illustrators worldwide.
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.