A brand is seen, but above all it is read: on the website, in emails, on Instagram, in the "thanks for your order" message, in how support replies when something goes wrong. And yet most branding projects stop at the logo and the palette. The result is familiar: an impeccable visual identity and copy that could belong to anyone. Tone of voice is what makes your brand sound like you even without the logo in front of it.
What tone of voice is (and isn't)
It's your brand's personality expressed in words: what it says, how it says it and what it would never say. It isn't a grammar style guide or a list of banned words, although it includes them. It's the difference between "Dear customer, we hereby inform you that your order has been processed" and "Your order's on its way. We'll let you know when it arrives". Both are correct; only one has a voice.
Why it matters as much as the logo
Because it's what has the most contact with the customer. They see your logo a few times; they read your copy hundreds of times. A consistent tone creates recognition (people identify you without seeing the brand), trust (a brand that sounds the same everywhere seems to know what it's doing) and differentiation in sectors where everyone offers the same thing: two hotels with the same rooms are told apart by how they speak to you. And it has an internal effect: when the team knows how the brand sounds, they write faster and better.
How to define it
- Personality. If your brand were a person, what would they be like? Three or four adjectives with their nuances: "approachable but not matey", "expert but not pedantic", "with humour but never at the customer's expense". The nuance is what makes it usable.
- Principles. Concrete rules: we speak informally; we get to the point; we explain the why; we don't use jargon without translating it; we don't promise what we don't control.
- "Like this / not like this" examples. This is the most useful part of the document: the same sentence written badly and well. A headline, an error email, a reply to a complaint, a post.
- Registers. There's one voice; the tone adapts. The same brand doesn't sound the same in an advert, in a legal notice or replying to a one-star review. Defining how it modulates in each situation avoids "on social media we're fun and in email we're a bank".
- Vocabulary. What you call your products, your customers, your team. Words that are yours and words you won't use.
Where it applies (and where it gets forgotten)
Website and social media are usually well looked after. It gets forgotten in transactional emails (confirmations, invoices, reminders), in the website's error messages, in replies to reviews, in customer-service WhatsApp, in job adverts and in sales presentations. Precisely the places where the difference between a brand with a voice and a brand with a logo shows most.
Tone of voice and artificial intelligence
Here there's a real shift. More and more brand copy is written, or helped along, by AI — product sheets, support replies, draft posts. Without a defined tone of voice, the AI writes in the AI's default tone, which is the same for everyone. With a clear voice document, it becomes the guide that makes what's generated sound like you. Tone of voice has gone from being a branding luxury to being the instruction that governs your tools.
In our branding process the verbal identity is worked on alongside the visual one, and it forms part of the brand guidelines. If your brand looks good but sounds like anyone, we'll help you find its voice. Let's talk.
