The Four Dimensions of Tone of Voice in UX Writing
UX Writing, Tone of Voice, Content Strategy, Brand Voice, Microcopy, Error Messages
“‘Be consistent. Be authentic. Be unique.’ That’s the usual advice about tone of voice – vague and unhelpful.
In UX, every word matters: button labels, error messages, onboarding tips. They all shape how users feel about your brand. But how do you actually define your tone?
In this article, I’ll break down four concrete dimensions of tone – funny vs. serious, formal vs. casual, respectful vs. irreverent, enthusiastic vs. matter‑of‑fact – and show you how to apply them to a single error message. Test which one works for your users.”
The Four Dimensions of Tone of Voice in UX Writing
In literature, tone of voice refers to the author’s feelings towards the subject, expressed through writing. In UX, every scrap of writing on a page – from body copy to button labels – contributes to the tone we use to speak to our users.
Despite its importance, advice about tone tends to be vague: “Be consistent. Be authentic. Be unique.” So we created a manageable, UX‑specific tool: four primary tone‑of‑voice dimensions.
The Four Dimensions
Funny vs. Serious – Is the writer trying to be humorous? (Note: trying doesn’t mean succeeding. Jokes can miss.)
Formal vs. Informal / Casual – Does the writing use contractions? Slang? Full sentences?
Respectful vs. Irreverent – Irreverent tones often aim to set a brand apart, not offend the reader.
Enthusiastic vs. Dry / Matter‑of‑fact – Is the writer excited about the product? Or purely neutral?
Same Message, Four Different Tones
Let’s apply these dimensions to a simple error message:
“An error has occurred.”
Version 1 – Serious, Formal, Respectful, Matter‑of‑fact
“We apologize, but we are experiencing a problem.”
No humor, no strong emotion. Traditional and straightforward.
Version 2 – Still Serious & Matter‑of‑fact, but More Casual
“Sorry, we’re experiencing a problem on our end.”
Changed “we are” to “we’re”, “apologize” to “sorry”, added “on our end”.
Version 3 – Casual + Enthusiastic (emotion, not excitement)
“Oops! We’re sorry, but we’re experiencing a problem on our end.”
“Oops” adds emotion – appropriate for a negative subject.
Version 4 – Humorous + Irreverent
“What did you do!? You broke it!”
Playful, but risky.
Which Tone Works Best?
That depends on:
Your brand personality
Your users
The context (e.g., frequency of the error)
If users are already frustrated or see the error often, a humorous tone might be irritating.
The best way to know? Test.
“The way we communicate with our users is just as important as what we’re communicating.”
Download our ‘Tone of Voice Swipe File’ – 20 real examples of error messages, onboarding copy, and button labels across the four dimensions.