Diamine Imperial Blue is a deep royal blue fountain pen ink with a distinctive blurple (blue-violet) undertone that delivers smooth, reliable performance across various fountain pens. Known for its medium shading and attractive gold sheen, it offers a balance of vibrant color and practical usability with reasonable drying times. This English-made ink since 1864 is ideal for writers seeking a sophisticated blue ink that works well in both vintage and modern pens.
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Ink Review #1133: Diamine Imperial Blue
Overall, this ink is more 'blurple' (blue-violet) than blue, with gold sheen on swabs, average flow, low water resistance, and some feathering on copy paper. Tested on various papers showing medium show-through and 20-second dry time.
Diamine Imperial Blue — Penthusiast — Fountain Pen Ink Review
Diamine Imperial Blue leans heavily into violet, distinguishing it from standard blues and even its sibling Imperial Purple, available at standard Diamine pricing of €4.50 for 30ml.
Ink Review: Diamine Imperial Blue - The Fountain Pen Network
This is a nicely flowing ink that is neither too wet nor dry, with lubrication slightly drier than some other reviewed inks, accompanied by user images of writing samples.
Ink details on this page were generated with the assistance of AI and may not be fully accurate.