Ink Review #1135: Diamine Indigo

Today’s ink is Diamine Indigo. I purchased my bottle of ink from Cult Pens a while ago.

The color:

Indigo is a dark but very unsaturated blue. It’s almost a blue black but not quite.

Swabs:

In large swabs on Tomoe River paper there’s a little bit of shading and some black sheen.

Writing samples:

Let's take a look at how the ink behaves on fountain pen friendly papers: Rhodia, Tomoe River, and Leuchtturm.

Dry time: 30 seconds

Water resistance: Low

Feathering: None

Show through: Medium

Bleeding: None

Other properties: low shading, tiny black sheen, and no shimmer.

On Staples 24 lb copy paper there was some feathering in most nib sizes and a few dots of bleeding.

Comparison Swabs:

Indigo is less saturated and darker than Robert Oster Grey Seas, and less green than Diamine Twilight. Click here to see the Diamine inks together, and click here to see the blue inks together.

Longer writing:

I used a Franklin-Christoph 46 Blue Diamondcast with a broad nib on a Taroko Enigma notebook. The ink had an average flow.

Overall, it’s well behaved, but it’s not a color I think I would reach for often.

Disclaimer: I purchased this ink myself, and all photos and opinions are my own. This page does not contain affiliate links and this post is not sponsored in any way.