It is not "rude" or "graceless" to write with red ink. Instead, it is far too unstable to be used in legal papers or anything else that will be archived. Even if the ink is not visible, the page's background color may show through.
Of course, anyone can use red ink to write their name. Using red ink on a legal or official document, on the other hand, would reduce the force of the signature. That individual would be perceived as stupid or shallow, and his or her signature would be less strong as a result. In fact, only lawyers and officials in some countries (such as Japan) use red ink when signing documents.
The tradition of using red ink dates back at least as far as 1410, but it is probably not true that everyone used it then. It was most common in Europe and America. China used blue ink until 1905 when they switched to red ink.
People use red pens today for two main reasons: to sign books and to sign checks. When you sign a book, you are giving authority to its contents. If you used black ink, your signature would be meaningless since it would be lost in the darkness. But by using a red pen, you make yourself visible even in the absence of light.
In the same way, when you sign a check you are saying that you agree with the items listed on it. If you used black ink, your signature would be covered by the line below it so no one could read it. But by using a red pen, you make yourself clear even if there is no light available.
The majority of legal and official papers are generated by institutions that prefer signers to use black or dark blue ink. This way their documents will be accepted by most photocopiers.
In fact, the original signatures of some famous people have been preserved using only red ink. These include the signatures of: Abraham Lincoln; Ulysses S. Grant; Thomas Edison; Henry Ford; Charlie Chaplin; Walt Disney; Andy Warhol; and Prince Charles.
People who use only black or blue ink on their signed documents may not be aware of this tradition. If you ask them why they use only one color of ink, they might say it's because they like both black and blue, or they think either one is good enough. In any case, it's not necessary to use only one kind of ink when signing your name. As long as you use ink of at least one color when signing your work, then no one but you can invalidate the signature.
The reason for limiting yourself to one type of ink when signing your name has nothing to do with quality or validity. It's just a tradition that has developed over time among famous people who wanted to distinguish their signed documents from those of their peers.
Why is using a red pena bad idea? Red pens were regarded unsuitable for signing or approving checks because they would seem faint or non-existent on a photocopy, according to Wong. When the red laser light scans the page, the entire document glows red. As a result, a signature scrawled in red ink appears to vanish. The reason for this is that black ink is darker than red, so when it's photocopied, the original signature will be lost in the copy.
There are two ways around this problem: use black ink or don't use a red pen for signing documents that may be scanned by optical scanners.
The best way to avoid this problem is to use only black ink for signing documents. This can be done by buying an extra set of ink cartridges for your printer that contain only black ink (black ink costs more, but its quality is better) or by printing with black ink most of the time and using only red ink on critical documents.
Another solution is to use red pens only for critical documents or during secret meetings. The reason for this is that if you use red pens for all your signatures, they will appear too bright on photocopies resulting in lost signatures. However, some people enjoy the feeling of using red pens so this option is acceptable.