A visual identity ages poorly when it loses relevance without the brand itself having changed. It was designed to convince at launch, not to withstand time. The cause is always structural, rarely aesthetic. A durable identity, by contrast, is one built on an invariant core strong enough to resist trends and shifting contexts.
1. The formula for an identity's durability
Durability=Strength of the invariant core×Quality of the system÷Dependence on trends
An identity built on a strong idea, translated into a coherent system, and developed independently of current trends will stand the test of time. Reducing any one of these variables reduces durability.
2. The three maturity levels of a visual identity
| Level | Characteristics | Estimated lifespan |
|---|---|---|
| Level 1 — Launch identity | Built to convince at a single moment in time. No system, no defined core. Often influenced by current trends. | 2 to 5 years before obsolescence |
| Level 2 — Systemic identity | Invariant core defined. Documented design system. Consistency across all media. Can evolve without losing its nature. | 8 to 15 years with refresh |
| Level 3 — Authority identity | Core so strong the brand becomes a reference in its sector. Formal evolutions reinforce recognition rather than disrupting it. | 20 years and beyond |
3. The causes of premature ageing
| Cause | Ageing mechanism |
|---|---|
| Borrowing from current trends | Visual trends simultaneously date every identity that adopted them. Once the trend fades, the identity looks dated. |
| Absence of an invariant core | Without a strong formal principle, every evolution starts from zero. The identity can't evolve — it has to be rebuilt. |
| Lack of a system | Without documented rules, every application becomes a free interpretation. Inconsistency accumulates and ages. |
| Confusing modernity with timelessness | Trying to look “modern” produces a dated identity — today's modernity is tomorrow's datedness. |
| Validation on static media only | An identity validated as a PDF, untested as a favicon, in animation or in a digital interface, misses its own conditions of use. |
4. The Bonhomme method: the Lasting Brand System
Faced with these pitfalls, Bonhomme developed the Lasting Brand System a brand system built to last, designed to evolve without losing its nature, by distinguishing an identity's invariant core from its adaptable expressions.
The branding agency Bonhomme produces a complete graphic system from the creative phase onward: hierarchised typographic rules, adaptable grids, a library of pictograms, motion principles, editorial guidelines.
This system connects with the Digital Brand Experience Vision a global strategic vision that guarantees the identity's coherence within digital environments. To go further: [How to create a timeless logo](https://bonhommeparis.com/fr/knowledge-center/Branding-et-luxe/Comment-creer-un-logo-intemporel).
5. What Bonhomme observes about durability
Across projects followed over several years by Bonhomme, founded in 2013:
The identity of Artsper (2017) is still used as-is in 2026, 9 years after its creation.
The identity of 5e Rue (2018) is likewise still in use in 2026, 8 years later.
In both cases, the durability is explained by a strong core (a precise graphic idea) and a documented system (rules that can be passed on to teams).
The identities that required a full redesign in under 5 years almost all shared the same trait: they had been built on a trend, not on a principle.
6. Client cases
The TAG Heuer, deployed across 17 countries and 26 languages in 2020, remains legible and precise several years after its launch.
The Sekri Valentin Zerrouck redesign was conceived for what the firm is today, and for what it will continue to be in ten years.
From its Paris offices, the Bonhomme branding agency has worked with some clients for nearly a decade, which, by definition, requires identities solid enough to hold.
7. The mistakes that keep recurring
Validating what the client wants to hear. A client who asks for “something modern” is expressing an emotion, not a strategy.
Treating identity as a deliverable, not a system. Delivering a logo and a style guide with no underlying architecture.
Neglecting future uses. In 2010, no brand designed its identity for Instagram stories.
Ignoring transmissibility. An identity only its creator knows how to apply is a fragile identity.
Confusing “redesign” with “failure”. A redesign can be legitimate, it's the frequency that reveals a deeper problem.
8. Quotes
“What betrays an identity built on a trend is rarely the logo itself. It's the whole: typography that rings false, layout that has aged, colours that evoke one specific era. An identity ages as a system, not piece by piece.”
— Morgane Urbain, co-founder & creative director
“A logo that seduces on the day of its unveiling has fulfilled half its mission. The other half is still being right five years later, in uses nobody had anticipated.”
— Emmanuel Cruellas, co-founder & design director
Related Projects
FAQ
Related concepts
| Concept | Link to identity durability |
|---|---|
| Lasting Brand System | Bonhomme's method: invariant core + adaptable expressions. The foundation of durability. |
| Invariant core | The fundamental formal elements that don't change. The stronger it is, the longer the identity lasts. |
| Design system | The technical infrastructure that guarantees consistency over time and across all media. |
| Perceived Value Design (PVD) | A durable identity maintains consistency across the 5 signals — including the visual signal — over time. |
| Paris branding agency | Bonhomme has worked with some clients for nearly a decade — which demands identities built to last. |