Ink
The best black fountain pen inks
Every black ink looks the same in the bottle and behaves completely differently on the page. The color is the one property that does not distinguish them.
How this page is funded. Buying through a link here earns us a commission at no extra cost to you. It does not change what we recommend or the order we recommend it in, and we have not hands-on tested these products — see how we choose and the full disclosure.
Buying black ink feels like it should be the easy purchase. It is black. How different can they be?
Considerably, and none of the differences are visible in the bottle. Two blacks at the same price can differ by ten seconds in drying time, by an entire grade in how much they feather on cheap paper, and by the difference between surviving a spilled drink and dissolving in it. Those are the properties worth choosing on, and the color is not one of them.
The four properties that actually separate black inks
Ink makers publish almost none of these, which is why this page leads with the framework rather than the products. When a figure is published we cite it; when it is not, the pick says so.
| Property | What it means | Who should care |
|---|---|---|
| Wetness | How much liquid the ink puts on the page. Dry inks feather less and dry faster; wet inks look richer and flow more smoothly. | Anyone writing on office paper, and every left-hander. |
| Drying time | How long before the side of your hand can cross it safely. Varies from a couple of seconds to fifteen or more. | Left-handers, fast writers, and anyone who closes a notebook immediately. |
| Water resistance | Whether the writing survives getting wet. Dye inks mostly do not; pigment and document inks mostly do. | Anyone writing anything they need to keep. |
| Ease of flushing | How readily the ink washes out of a pen. Pigment inks are harder and can dry solid if left. | Anyone who owns one pen and switches colors, or forgets a pen for a month. |
Notice what is not on that list: how black the black is. Every ink here is legibly black. The variation between them is smaller than the variation caused by which nib and paper you use, which is why we rank on behavior instead.
How we ranked these
- Safety on unknown paper first. Most people buying a first black bottle do not have specialist paper, so an ink that behaves on whatever is in the printer tray is worth more than one that looks better on Rhodia.
- Then what the maker publishes. A stated volume, a stated formulation, a stated water-resistance claim - these are rare enough that they count.
- Then cost per milliliter, because black is the color people go through fastest.
- We have not lab-tested any of these. No drying times or water-resistance figures of our own appear anywhere on this page.
The inks
Quick picks
Ranked for the beginner buying their first setup. Every pick names who it is wrong for.
| # | Product | Best for | Price |
|---|---|---|---|
| 1 |  Pelikan 4001 Brilliant Black, 30 ml A dry, thin, unremarkable black that behaves on paper other inks ruin - which is exactly what a first bottle should do. | The default black, and the cheapest way to be safe | $6.80 · View on Amazon #ad Price as of October 18, 2026. How this is funded |
| 2 |  Diamine Onyx Black, 80 ml Eighty milliliters of a well-behaved black for roughly what a 30 ml bottle of anything else costs. | The most ink per dollar of any black here | $15.95 · View on Amazon #ad Price as of October 18, 2026. How this is funded |
| 3 |  J. Herbin Perle Noire, 30 ml A dry-writing black in a bottle small enough that a wrong guess costs almost nothing. | A small bottle to try before committing | $15.13 · View on Amazon #ad Price as of October 18, 2026. How this is funded |
| 4 |  Noodler's Black, 3 oz A dye that bonds to paper fibers, so once it is dry the writing stays put even when the page does not. | Writing that has to survive water | $18.28 · View on Amazon #ad Price as of October 18, 2026. How this is funded |
| 5 |  Platinum Carbon Black, 60 ml A true pigment ink: the blackest line you can get out of a fountain pen, and permanent once dry. | Line work and archival notes | |
| 6 |  De Atramentis Document Black cartridges, 5-pack The same document-grade black as the bottle, in a standard international cartridge — which makes it the one waterproof cartridge here that is not tied to a single pen brand. | Waterproof ink in a cartridge that fits most pens | $7.95 · View on Amazon #ad Price as of October 18, 2026. How this is funded |
1. The default black, and the cheapest way to be safe
Pelikan 4001 Brilliant Black, 30 ml
A dry, thin, unremarkable black that behaves on paper other inks ruin - which is exactly what a first bottle should do.
#ad Price as of October 18, 2026. How this is funded
Pelikan makes a point of the formula's age, and for once the marketing line is the useful specification: 4001 is a thin, low-saturation ink from an era before anyone was optimizing for photographs of ink swatches.
Thin and low-saturation is what you want on paper you have not tested. Less liquid reaches the page, so there is less to feather sideways and less to soak through.
It is not waterproof and Pelikan does not claim it is. A wet thumb will smear a fresh line. If that matters, the waterproof ink page covers the inks that survive it.
| Volume | 30 mlSource: Pelikan 4001 Brilliant Black, 30 ml (retail listing, read 2026-09-13) |
|---|---|
| Formula age | Developed over 125 years ago, per the makerSource: Pelikan 4001 Brilliant Black, 30 ml (retail listing, read 2026-09-13) |
| Made in | GermanySource: Pelikan 4001 Brilliant Black, 30 ml (retail listing, read 2026-09-13) |
| Compatibility | Pelikan pens and other brands with a piston or converter, per the makerSource: Pelikan 4001 Brilliant Black, 30 ml (retail listing, read 2026-09-13) |
| Water resistance | Not published |
| Drying time | Not published |
What it does well
- Behaves on cheap paper better than almost any saturated black
- The least expensive bottle of any ink we recommend
- Flushes out of a pen easily, so it is a safe first fill
What it does not
- Reads gray-black rather than a deep black
- No water resistance, and none claimed
- 30 ml is a small bottle by fountain pen standards
Skip this if you want a dense, photographic black. This is the safe one, not the dramatic one - Noodler's Black or Platinum Carbon Black are the dense ones.
2. The most ink per dollar of any black here
Diamine Onyx Black, 80 ml
Eighty milliliters of a well-behaved black for roughly what a 30 ml bottle of anything else costs.
#ad Price as of October 18, 2026. How this is funded
The listing publishes the volume and essentially nothing else, which is normal for Diamine and is why the interesting number here is arithmetic rather than chemistry: 80 ml is between two and three times the bottle size of most inks on this page, at a similar price.
Onyx Black is the darker, more saturated end of the safe range - noticeably denser on the page than Pelikan 4001, without going as far as a pigment ink.
Diamine publishes no drying time and no water-resistance claim, so we make neither. Treat it as a standard dye ink: fine for a notebook, not for anything that might get wet.
| Volume | 80 mlSource: Diamine Onyx Black, 80 ml (retail listing, read 2026-09-13) |
|---|---|
| Water resistance | Not published |
| Drying time | Not published |
| pH | Not published |
What it does well
- Far more ink per dollar than any other black we list
- Denser on the page than the traditional dry blacks
- Diamine's range is enormous, so switching color later keeps the same behavior
What it does not
- Almost nothing about the ink itself is published
- An 80 ml bottle is a long commitment to one color
- No water resistance claimed
Skip this if you are buying your first bottle. Start with 30 ml of something and find out whether you like it before committing to 80 ml of anything.
3. A small bottle to try before committing
J. Herbin Perle Noire, 30 ml
A dry-writing black in a bottle small enough that a wrong guess costs almost nothing.
#ad Price as of October 18, 2026. How this is funded
Thirty milliliters is a sensible amount of ink for someone with one pen. It is months of writing, and it does not commit you to a color for years.
Perle Noire runs on the dry side for a black, which makes it a better companion for wet nibs and thin paper than most blacks are.
The same ink is available in cartridges, which is unusually convenient if you want to carry the color rather than only use it at a desk.
| Format | 30 ml bottleSource: J. Herbin Perle Noire 30 ml (retail listing, read 2026-09-01) |
|---|---|
| Also sold as | A tin of six international standard cartridgesSource: J. Herbin Perle Noire cartridges (retail listing, read 2026-09-01) |
| Published drying time | Not published |
| Published water resistance | Not published |
What it does well
- Small bottle, small commitment
- Runs dry, which helps on thin paper
- Available in international standard cartridges too
What it does not
- Not water resistant
- Less saturated than a pigment black
- No published figures
Skip this if you want maximum blackness on the page — a pigment ink is a different order of dark.
4. Writing that has to survive water
Noodler's Black, 3 oz
A dye that bonds to paper fibers, so once it is dry the writing stays put even when the page does not.
#ad Price as of October 18, 2026. How this is funded
The reason to keep a bottle of this is not the color. It is that a signed document, an address on an envelope or a note left on a windowsill survives contact with water, which ordinary dye inks do not.
Because the dye bonds to the paper rather than sitting on it, it also tends to feather less on cheap stock than its wetness would suggest.
The trade-off is cleaning. Inks that bond to cellulose also bond to the inside of a pen, so flush more often and do not leave it sitting in a pen you plan to ignore for a month.
| Format | 3 oz bottleSource: Noodler's Black (retail listing, read 2026-09-01) |
|---|---|
| Type | Waterproof once dried; the maker describes the dye as bonding to celluloseSource: Noodler's Black (retail listing, read 2026-09-01) |
| Claimed behavior | Feathering-resistant and quick-dryingThe maker's own claim on the listing. We have not tested it.Source: Noodler's Black (retail listing, read 2026-09-01) |
| Published drying time in seconds | Not published |
What it does well
- Water resistance that ordinary dye inks cannot offer
- Large bottle
- Copes better than most wet inks on ordinary paper
What it does not
- Harder to flush out than a standard dye ink
- Not for a pen you will leave unused for long periods
- No published drying figure despite the quick-drying claim
Skip this if you swap colors often or leave pens inked for weeks — a bonding ink punishes both habits.
5. Line work and archival notes
Platinum Carbon Black, 60 ml
A true pigment ink: the blackest line you can get out of a fountain pen, and permanent once dry.
Pigment ink suspends solid particles rather than dissolving a dye, which is why it is opaque, why it is permanent, and why it will clog a pen left to dry out.
For drawing, for signatures, and for anything you want legible in twenty years, nothing else in a fountain pen comes close.
It demands discipline. Do not leave it in a pen you are not using, and flush thoroughly when you change ink.
| Format | 60 ml bottleSource: Platinum Carbon Black (retail listing, read 2026-09-01) |
|---|---|
| Type | Pigment ink (carbon), not a dyeSource: Platinum Carbon Black (retail listing, read 2026-09-01) |
| Also sold as | Platinum Carbon cartridges, for pens that take themSource: Platinum Carbon ink cartridges (retail listing, read 2026-09-01) |
| Published drying time | Not published |
What it does well
- Genuinely black and genuinely permanent
- Excellent for ink drawing over watercolor
- Available as cartridges as well as a bottle
What it does not
- Will clog a pen that is left to dry
- Needs more frequent cleaning than any dye ink
- Not a good match for a pen you use once a fortnight
Skip this if your pen sits unused for weeks at a time — a dried pigment ink is a much bigger problem than a dried dye ink.
6. Waterproof ink in a cartridge that fits most pens
De Atramentis Document Black cartridges, 5-pack
The same document-grade black as the bottle, in a standard international cartridge — which makes it the one waterproof cartridge here that is not tied to a single pen brand.
#ad Price as of October 18, 2026. How this is funded
The Document range occupies the middle ground in waterproof ink: more resistant than an ordinary dye, less demanding than a pigment. That matters because pigment inks are the usual answer to water resistance and they punish a pen that sits unused.
The useful difference here is fitment. The other waterproof cartridges on this page fit one brand of pen each; this is a standard international cartridge, so it fits most pens that take one. The listing is explicit about the exception: pens that accept only their own maker's cartridges, which it names as LAMY, Parker, Platinum and Waterman.
What the maker still does not publish is a number. Heat, light and water resistant is a claim with no standard behind it, and water resistance is the entire reason to buy this ink, so treat it as the maker's word rather than as a measured property.
| Format | Standard international cartridges, five per packSource: De Atramentis Document Black cartridges (retail listing, read 2026-10-10) |
|---|---|
| Maker's resistance claim | Document quality; heat, light and water resistantThe maker's own wording. It is a claim rather than a figure — no standard or test is cited, which is why we do not restate it as a finding.Source: De Atramentis Document Black cartridges (retail listing, read 2026-10-10) |
| Fitment | Any pen taking a standard international cartridge; will NOT fit pens that take only their own maker's cartridges, such as LAMY, Parker, Platinum and WatermanSource: De Atramentis Document Black cartridges (retail listing, read 2026-10-10) |
| Range | Document range, sold alongside a separate Archive rangeSource: De Atramentis Archive Ink Black (retail listing, read 2026-10-10) |
| Published drying time | Not published |
What it does well
- Water resistance without suspended pigment particles
- Fits most pens that take a standard international cartridge
- No bottle to flush, and the Document range covers other colors
What it does not
- The resistance claim carries no figure or standard behind it
- Will not fit a LAMY, Parker, Platinum or Waterman that takes only its own cartridges
- Five cartridges is far less ink than a bottle
Skip this if you need archival permanence for something that matters — a pigment ink is the stronger claim, and it is the one to use when the document has to last.
Dye, pigment and document ink - the distinction that matters
Three of the inks on this page are ordinary dye inks and three are not, and confusing them is how pens get ruined.
A dye ink is colorant dissolved in water. It flows well, washes out easily, and comes off the page if the page gets wet. Pelikan 4001, Diamine Onyx and J. Herbin Perle Noire are all dye inks, and for ordinary notebook writing that is completely fine.
A pigment ink suspends solid particles instead of dissolving colorant. The particles sit on the paper and stay there when water arrives, which is why Platinum Carbon Black is genuinely waterproof. The cost is that those particles can dry inside a pen and block it, so a pigment ink is for a pen you use regularly and flush properly.
A document ink aims at the same water resistance by chemistry rather than particles - the colorant bonds to the paper fibers. De Atramentis Document Black is the example here. It behaves more like a dye ink in the pen and more like a pigment ink on the page, which is the best of both if you can find it.
Matching the ink to the paper you actually own
This is the step that decides whether you are happy, and it runs opposite to what most people assume.
| If you write on | Buy | Because |
|---|---|---|
| Office paper, cheap pads, a Moleskine | Pelikan 4001 or J. Herbin Perle Noire | Dry, thin inks put less liquid on absorbent paper, so they feather and bleed less. |
| Rhodia, Clairefontaine, Tomoe River | Diamine Onyx or Noodler's Black | Coated paper holds ink on the surface, so a saturated ink shows its density instead of spreading. |
| Anything that might get wet | Platinum Carbon Black or De Atramentis Document Black | Only pigment and document inks survive water. No dye ink does, whatever the bottle says. |
| You do not know yet | Pelikan 4001 | It is the cheapest and the most forgiving. Find out what you like before committing 80 ml to it. |
If your paper is the problem rather than your ink, the inks for cheap paper page goes further on that specific fight, and the bleed, ghosting and feathering guide explains which failure you are actually looking at.
Bottle size, and the trap in it
Black is the color people use most, so buying a big bottle looks obviously sensible. It usually is not, for a first purchase.
An 80 ml bottle of ink is somewhere between one and three years of ordinary writing. That is a long time to live with a decision made before you knew what you preferred. A 30 ml bottle costs a third as much, lasts long enough to form an opinion, and leaves the door open.
Buy big on the second bottle, once an ink has earned it. The cost-per-milliliter argument is real and it only pays off on an ink you have already decided you want.
If you are on cartridges
Everything above assumes a bottle, because that is where the choice exists. Cartridge users are limited to whatever their pen's brand makes, and the black cartridge from Pilot, LAMY or Platinum is usually a straightforward, dry, well-behaved ink.
The exception worth knowing: Platinum sells its pigment Carbon Black in cartridge form, which is the only easy route to a genuinely waterproof black without a bottle. The cartridge page covers which system fits which pen. And if blue suits your writing better than black, the blue ink comparison works through the same properties for blue.
Questions people actually ask
What is the best black fountain pen ink?
For a first bottle, Pelikan 4001 Brilliant Black - it is dry, cheap and behaves on paper that ruins other inks. For water resistance, Platinum Carbon Black or De Atramentis Document Black. For the most ink per dollar, Diamine Onyx Black in 80 ml.
Is black fountain pen ink waterproof?
Most of it is not. Ordinary dye inks dissolve when they get wet. Only pigment inks like Platinum Carbon Black and document inks like De Atramentis Document Black are genuinely water resistant.
Which black ink is best for cheap paper?
A dry, low-saturation one. Pelikan 4001 Brilliant Black and J. Herbin Perle Noire both put comparatively little liquid on the page, which is the mechanism that reduces feathering and bleed-through.
Can I leave pigment ink in my pen?
For a week or two of regular use, yes. For a month of no use, no - the solid particles can dry inside the feed and block it. If you are likely to forget a pen in a drawer, use a dye ink instead.
What is the difference between pigment and document ink?
Pigment ink suspends solid particles that sit on the paper. Document ink bonds chemically to the paper fibers instead. Both resist water; document ink is generally easier on the pen because there are no particles to settle.
Should I buy a 30 ml or an 80 ml bottle?
Thirty, for a first bottle. Eighty milliliters is between one and three years of writing, which is a long commitment to an ink you have not used yet. Buy the large bottle once an ink has proved itself.