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KWZ

IG Blue #4

Blacks & greys#19111E

A Polish ink maker popular for iron gall and standard formulations favored by more experienced users.

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Specs

Color familyBlacks & greys
Approx. hex#19111E
SheenNot typically noted
BrandKWZ

Paper & pairing

As a near-neutral tone, it reads as professional and safe for anything from journaling to signatures. 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.

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About KWZ

A Polish ink maker popular for iron gall and standard formulations favored by more experienced users.

Poland Founded c. 2011
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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

What color family is IG Blue #4?
IG Blue #4 falls into Inktend's blacks & greys family based on its typical swatch color.
Does IG Blue #4 have sheen?
IG Blue #4 is not typically noted for sheen. If you want that effect, browse similarly colored inks tagged with sheen in the ink library.
How should I store a bottle of IG Blue #4?
Years, easily, as long as it stays capped and out of direct sunlight. The thing that actually shortens an ink's usable life is sitting unused inside a pen, not sitting on a shelf.
What paper works best with IG Blue #4?
It behaves predictably on most fountain-pen-friendly paper. Stick to something reasonably absorbent-resistant, since cheap copier paper dulls saturation and can feather.

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Color shown is a close digital approximation of a typical swatch, not a calibrated color match.