With a heavy lean into violet, Diamine Imperial Blue is far from a standard blue ink. Excluding special editions as well as shimmering and sheening inks, and drawing an arbitrary line between blue, turquoise, teal and mint, Diamine has about twenty shades of blue available, some of which can be hard to distinguish from each other even for a trained eye. Imperial Blue is certainly the exception, even managing to set itself apart from its sibling, Imperial Purple.
Like all standard Diamine inks—excluding Shimmertastic inks and some sheening or store-exclusive inks—Diamine Imperial Blue retails for € 4.50 for 30 millilitres (€ 0.15/ml) and € 9.- for 80 millilitres (€ 0.14/ml).
Interested in a variety of shades and colours? Read my other ink reviews!