A notary must use blue or black ink for the seal, signature, and handwritten entries on a paper notarization in most states, because dark ink reproduces cleanly when documents are scanned, photocopied, and recorded. The rule is not universal, though. A handful of states require black specifically, a few require a color other than black, and some leave the choice open as long as the impression reproduces well. Your commissioning state’s statute or notary handbook is what controls.
Why the Blue-or-Black Default Exists
Recording offices, courts, and title companies scan and photocopy notarized documents, and those copies need to stay legible for years. Dark inks reproduce cleanly on standard copiers and scanners. Lighter colors like red, green, or purple tend to wash out or disappear in black-and-white reproduction. If a county recorder cannot read the seal impression on a scanned copy, the document may be kicked back.
Blue carries a secondary advantage. A blue signature stands out against black printed text, making it easier to tell an original from a photocopy at a glance. That matters in real estate closings and legal proceedings where parties need to confirm they are holding the original. Black ink scans just as cleanly but does not offer that visual distinction.
How the Requirement Varies by State
There is no national rule. Each state’s notary statute or administrative code sets its own color requirement, and they do not all agree.
States That Require Black
Several states mandate black ink for the seal. Florida is one of the most explicit: its notary statute requires the rubber stamp seal to be “affixed to the notarized paper document in photographically reproducible black ink.”1Florida Senate. Chapter 117 Section 05 – 2024 Florida Statutes In a state like this, a blue seal can get your document rejected at the recording office even though it would pass one state over.
States That Require a Color Other Than Black
A few states go the other direction. Tennessee requires the notary stamp to imprint in a color other than black or yellow, and whatever color is chosen must “appear as black when photocopied on a non-color copier.”2Justia Law. Tennessee Code 8-16-114 – Seal of Notary Public Utah mandates purple ink for in-person notarizations. These rules catch notaries off guard, especially those who recently moved from a black-ink state.
States With Flexible Standards
Oregon sits at the other end. Its official notary guide states that a notary’s signature and stamp “may be in any color of ink that is easily reproducible” and recommends black or dark blue without strictly requiring either.3Oregon Secretary of State. Oregon Notary Public Guide The operative word in these states is reproducible. If the seal and signature photocopy and scan clearly, you are in compliance.
Seal Ink and Signature Ink Are Not Always the Same Rule
Even experienced notaries get this wrong. The color required for your seal stamp and the color allowed for your signature are not always identical. Some states specify black for the seal but allow blue or black for the signature. Others set one rule covering both. Texas, for example, requires an “indelible ink pad” for the seal impression without mandating a particular color, which leaves room for any dark ink that reproduces well. Handwritten entries on the certificate, such as the date, the type of identification presented, and the venue, generally follow the same rule as the signature.
When your state’s rule is unclear, black for the seal and blue or black for the signature is the safest combination almost everywhere. Black scans the cleanest. Blue on the signature helps anyone later confirm they are holding the original.
Remote Online Notarization Is a Different Rule Set
Physical ink color requirements do not apply to remote online notarization. When a notary acts through an audio-video platform, the signature and seal are applied electronically through a digital certificate or cryptographic seal. There is no physical ink involved. Most states that authorize remote online notarization require the electronic seal to be independently verifiable and to carry the same information as a physical seal: the notary’s name, commission number, commission expiration date, and state. If a remotely notarized document is later printed, the seal typically renders in black. The traditional ink color rules only matter for paper-based, in-person notarizations.
What Happens If You Use the Wrong Ink
The most immediate consequence is document rejection. County recorders and title companies regularly refuse to record documents where the seal is illegible, uses an unapproved color, or does not reproduce well in a scan. Some recording offices charge a penalty fee for non-conforming documents instead of rejecting them outright, but either outcome adds cost and delay. In a real estate closing, that delay can threaten the deal itself.
Beyond rejection, a notary who repeatedly ignores state procedural requirements risks discipline from the commissioning authority, ranging from written warnings to revocation of the commission.4Justia Law. Georgia Code 45-17-15 – Revocation of Commission A revoked commission ends your authority to notarize, and in many states the revocation becomes part of your public record. Civil liability is also possible if improper ink causes someone a financial loss, such as a missed closing deadline or a voided transaction.
Staying Compliant and Handling Out-of-State Documents
Your state’s notary handbook or the secretary of state’s website is the only reliable source for your exact requirement. Check it before buying supplies, and check it again when you renew your commission, because states occasionally update their rules. Keep a separate ink pad in the required color for your seal even if you prefer another color for your signature, and replace ink pads before impressions start to fade.
If you notarize a document that will be recorded in another state, keep in mind that the recording office there will apply its own formatting standards. A blue seal accepted in your state may be rejected by a recorder in a state that demands black. When a document is headed out of state for recording, black ink is the most universally accepted choice.