A design system your engineers will actually use.
Most design systems fail not because they are badly designed but because they are impossible to adopt. We build tokens, components and documentation against your real stack and your real constraints — and we measure success by whether engineering stops working around it.
Why design systems usually fail
It exists, and nobody uses it
There is a Figma library and a Storybook, and engineers still write one-off components because the system does not cover their case or is too slow to search. An unused system is worse than none — it is maintenance cost with no return.
Design and code have drifted
The Figma library and the coded components disagree, so nobody trusts either. Every ticket now includes an argument about which one is correct.
It covers the happy path only
Buttons and cards are beautifully specified. Empty states, error states, loading, dense-data variants and permission states are not — which is exactly where consistency breaks in real products.
Every new surface starts from scratch
A second product, a mobile app or an admin tool arrives and none of the existing work transfers, because the system was built for one surface rather than as a foundation.
What you actually get
Audit and inventory
Every component, colour, type style and spacing value currently in use across your products — usually the moment teams discover they have nineteen greys and five button styles.
Token architecture
A layered token system — primitive, semantic and component-level — so theming, dark mode and white-labelling become configuration rather than a rebuild.
Component library
Components with every state specified: default, hover, focus, active, disabled, loading, error and empty. Built in Figma with variants and properties that mirror how your engineers will consume them.
Accessibility baked in
WCAG 2.1 AA contrast, focus treatment and keyboard behaviour specified at the component level, so accessibility is inherited by default rather than remembered per feature.
Documentation and usage rules
When to use each component, when not to, and what to do when nothing fits. The last one is what stops the system fragmenting six months in.
Adoption plan
A migration path with a realistic sequence, plus working sessions with your engineers. Systems succeed or fail at adoption, so we treat it as part of the deliverable rather than your problem.
How the engagement runs
Audit
Weeks 1–2. Full inventory across products and code, and interviews with the engineers who will consume the system about why the current one is being worked around.
Foundations
Weeks 2–4. Token architecture, type scale, spacing, colour and accessibility standards — the layer everything else inherits from.
Components
Weeks 4–9. The library, built in priority order by actual usage frequency, with all states specified.
Adoption
Weeks 9–12. Documentation, engineering handover sessions and a migration sequence. We stay available while the first features get built on it.
Proof
Kelp Global — one system, three products
A Chrome extension, an analytics dashboard and a deals module built on a single shared system designed for speed and scale. Onboarding time fell 40% and feature adoption doubled — largely because consistency across surfaces removed the need to relearn the product. Read the full case study →
Related work
The same foundations underpin Adda247's eight modules. Design systems are usually commissioned alongside SaaS product design or after a UX audit exposes inconsistency costs.
What it costs
Engagement models
Design systems are project-scoped, usually with a light retainer afterwards for governance as the system evolves. Consolidating an existing system is typically cheaper than building from zero — the audit tells us which you actually need. See the pricing page.
Typical timeline
A full system runs 10–12 weeks. A focused consolidation of an existing library is usually 4–6 weeks. The audit stage alone can be run standalone if you want a diagnosis first.
Common questions
A full system — audit, tokens, components, documentation and adoption support — typically runs 10 to 12 weeks. Consolidating and documenting an existing library is usually 4 to 6. The variable is not component count but how many products the system has to serve and how much disagreement exists about the foundations.
Not always, and we will tell you if you do not. Below roughly one product and two designers, a system is usually overhead — a shared style file is enough. Systems earn their cost when multiple people ship in parallel across multiple surfaces, or when inconsistency has started showing up in enterprise sales conversations.
That is the constraint we design against. Tokens and component APIs are structured to match how your engineers actually consume them, whether that is React, Vue, native mobile or a mix. A system designed without reference to the implementation is the single most common reason adoption fails.
Usually the fix is consolidation and documentation rather than replacement, and it is considerably cheaper. The audit stage tells us whether the foundations are salvageable. We only recommend rebuilding when the token architecture itself is blocking work, and we show you the specific evidence first.
By involving them from the audit onward and treating adoption as a deliverable. We interview the engineers working around the current system about why, sequence the migration by real usage frequency rather than by what is easy to design, and run working sessions during handover. A system nobody adopts is a failed project regardless of how good the Figma file is.
If you need it, yes — and it is dramatically cheaper to build in from the start than to retrofit. A layered semantic token architecture makes dark mode, white-labelling and per-tenant theming configuration changes rather than parallel design work.
Your team, with documentation written for that purpose — including what to do when no existing component fits, which is the decision that fragments most systems. Some clients keep us on a light governance retainer to review additions; others take it fully in-house, which is a perfectly good outcome.
Evaluating design partners? Read our buyer's guide to choosing a product design agency — including when hiring an agency is the wrong call.
Is your system helping or being worked around?
Show us your component library and your codebase. In 30 minutes we'll tell you whether the problem is the system, the documentation, or the adoption path.