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Tono & Lims

E=mc2

Greens#8DAB76

Small-batch Japanese-Korean collaborative inks released in playful, story-driven limited series.

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Specs

Color familyGreens
Approx. hex#8DAB76
SheenNot typically noted

Paper & pairing

Greens read as more expressive than blue or black, a common choice for people who want color without leaving the realm of "still looks professional." 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 Tono & Lims

Tono & Lims is a Japanese ink brand founded by fountain pen enthusiast Takashi Ono in partnership with Lim's Lab, an ink producer based in South Korea. It is known for a huge, fast-moving catalog of small-batch inks organized into story-driven series such as Friendship, Legend, Baby Color, Earth Contact and Shaved Ice, plus countless retailer and pen-show collaborations. The playful naming and constant limited releases have made it a cult favorite in the fountain pen community.

Japan Founded 2018
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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 E=mc2?
E=mc2 falls into Inktend's greens family based on its typical swatch color.
Does E=mc2 have sheen?
E=mc2 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 E=mc2?
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 E=mc2?
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.