Design system agency for SaaS productsShip features from decisions,not blank files.

A design system agency builds the shared foundation a product team designs and codes from: tokens for colour, type, spacing and data formats, a Figma library with every component state, matching coded components, and the docs and rules that keep them in sync. DIXI builds them for SaaS and data-heavy products, on web and native mobile, with design and code in one team.

• TokensNamed decisions for colour, type, spacing, radius, motion and number formats, in light and dark.
• Figma libraryComponents with variables, variants and every state: default, hover, focus, loading, empty, error, disabled.
• CodeReact and Next.js components, or React Native for mobile, that read the same tokens as Figma.
• Docs and rulesUsage, do and don’t, accessibility notes, a changelog, and who approves a change.

Need the screens designed too, not only the system? See SaaS product design.

When the same decision gets made twice. The usual signals are a second designer, a second platform such as a mobile app, a third module built by a different team, engineers asking for hex values, or a rebrand that would take months of front-end work. Before your core flows settle, a small token set and a Figma library are enough.

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DIXI’s view from our own projects, not an external benchmark.

Speed, consistency and fewer arguments. In Figma’s own controlled test, designers with a relevant design system finished a task 34% faster. Yet zeroheight’s 2026 survey finds only 7% of teams report full adoption, only 5% track ROI, and satisfaction with code lags design. The gap is rarely Figma; it is the bridge to code and to people.

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zeroheight surveyed 147 design system practitioners. Checked 1 November 2026.

That’s why we design and code in one team, and agree one adoption metric before we start.

Six layers, sized to your stage: an audit of what exists, tokens in three tiers with light and dark themes, a Figma library with variables and every component state, coded components in React or React Native, a documentation site with usage rules and a changelog, and a governance model so your team can run it without us.

1. Weeks 1–2

   Design system audit

   “Our components drift and nobody knows which one is right.” An inventory of colours, type, spacing and components in Figma and in code, ending in a ranked roadmap.

   • Inventory
   • Figma health
   • Code parity

   What the audit checks →
2. Foundations

   Tokens in three tiers

   “A rebrand would take months.” Primitive, semantic and component tokens for colour, type, spacing, radius, motion and data formats, in light and dark, as CSS and W3C DTCG JSON.

   • Light + dark
   • Data formats
   • DTCG JSON

   See the tiers →
3. Koyfin · HCM

   Figma library

   “Designers rebuild the same table every sprint.” Components with variables, variants and every state, including data components: tables, KPI cards and charts.

   • Variables
   • Every state
   • Data components

   Data components →
4. EW · Mediator

   Coded components

   “Design and code say different things.” React and Next.js components, or React Native for mobile, reading the same tokens; or pairing with your engineers on theirs.

   • React
   • Next.js
   • React Native

   Our tech stack →
5. DIXI DS

   Documentation

   “Nobody knows when to use which.” Usage, do and don’t, accessibility notes and code for every component, plus a changelog, in Storybook or a docs site like ours.

   • Usage
   • Accessibility
   • Changelog
6. ComboCurve

   Governance and adoption

   “We built it, then nobody used it.” Naming rules, a contribution flow, versioning and deprecation, and one adoption metric read at handover.

   • Contribution
   • Versioning
   • Adoption metric

   How adoption works →

What a design system audit checks

1. Values in use vs definedEvery colour, type style and spacing value in Figma and in code, against the ones you meant to have.
2. Detached and duplicate componentsWhere designers broke away from the library, and why.
3. Variables and modesHow much of the library reads Figma variables, and whether light and dark are modes or copies.
4. Component statesHover, focus, loading, empty, error and disabled: drawn, or left to engineers.
5. Token names and tiersWhether components read roles or raw values.
6. Contrast in light and darkText and UI against WCAG 2.2 AA, in both themes.
7. Code parityFive components compared, Figma against production.
8. Docs freshnessWhat is documented, and when it last changed.
9. Who owns changesThe path from “we need a new component” to a release.

The audit ends with a ranked roadmap you can run with or without us. Ask for an audit.

More than colours and type. A data-heavy product needs shared units and number formats, one table component with every state, a chart grammar, one selection model, density rules, and tokens that both web and native apps read. DIXI built systems like this for ComboCurve, Koyfin and HCM, so new features start from decisions, not a blank file.

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Checked 1 November 2026. We say who wrote the production code because design-only and design-plus-build are different jobs.

A portal is where a design system lives after handover: every foundation, token and component on one site, with live playgrounds, code to copy, and light and dark themes. Ours, DIXI design system v1.1, runs dixi.agency and the portal our clients sign in to. These are real screens; on a call we walk you through it live.

dixi.agency/client-portal/design-system

What goes into a portal like this

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Our own portal, checked 1 November 2026. Yours is scoped to your system: fewer components cost less, a second brand or platform adds pages.

Tokens are named decisions stored once and read everywhere. We use three tiers: primitives hold raw values, semantic tokens give them roles with a value per theme, and component tokens belong to one component. Exported as W3C DTCG JSON, the same file feeds CSS, Figma variables, React and native apps, so a brand change is one edit.

• One name, every platformcolor.action.primary.bg-hover in JSON becomes --dx-action-primary-bg-hover in CSS and the same variable in Figma.
• Components never read primitivesThey read semantic or component tokens, so themes and brands swap underneath them. Tick “Break the rule” above to see why.
• Deprecate before deletingOld names stay as aliases for one version, with a dated changelog entry, so no release breaks.

The W3C Design Tokens Community Group format reached its first stable version, 2025.10 on 28 October 2025. In zeroheight’s 2026 survey 52% of teams use a three-tier structure, and 60% have no token automation at all (zeroheight, Design Systems Report 2026).

In three stages. An audit inventories every colour, type style and component in Figma and in code and ends with a ranked roadmap. Foundations and core components follow, designed and coded in parallel or paired with your engineers, reviewed every week. Documentation, governance and a first adoption check close the build; upkeep can continue month to month.

1. 01

   Audit and token map

   Weeks 1–2: an inventory of values and components in Figma and in code; short interviews with designers and engineers.

   You hold: the inventory, a ranked roadmap and a token map
2. 02

   Foundations

   Weeks 3–4: primitive, semantic and component tokens, light and dark, data formats; Figma variables and modes.

   You hold: tokens as CSS and DTCG JSON, Figma variables
3. 03

   Core components

   Weeks 5–6: buttons, fields, tables, cards and charts with every state, designed and coded in parallel, reviewed weekly.

   You hold: the Figma library and the first coded components
4. 04

   Docs and rules

   Weeks 7–8: usage, accessibility notes, contribution and deprecation rules, a changelog.

   You hold: a docs site or Storybook, and v1.0
5. 05

   Adoption check and handover

   Weeks 9–10: we read the adoption metric, walk your team through the system and agree who owns changes.

   You hold: an adoption baseline and a named owner

Typical for one SaaS product; 925Studios’ 2026 guide publishes the same 6–10-week range for a single-product build. Several products or brands take longer. Your weeks are confirmed in the written plan.

Start with a $4,000 fixed audit if you already have components that drift; the fee counts toward the build. A system build, designed and coded, starts at $15k and takes 6–10 weeks; a portal like ours adds from $10k. A design partnership, from $6k a month, keeps the system growing with every release. Our pricing page shows what changes the price.

Several products or brands? The audit sets the scope and the price of the build. Redesigning the product at the same time? The system can come inside a product project.

• Plan before contractA written plan and a quote after the first call. No commitment to get it.
• Keep what worksWe build on your components where we can, not from zero for its own sake.
• Your stackYour Figma, your repo, your docs tool. Nothing locked to us.
• You own everythingFiles, tokens, code and docs. Handover details.

By designing adoption, not announcing it. We agree one adoption metric before kickoff, such as the share of UI built from library components, involve engineers from week one, ship components in the stack you already use, write contribution and deprecation rules, and keep a changelog. ComboCurve’s system grew with its modules for 3.5 years, built next to its engineers.

• One adoption metricAgreed before kickoff and read again at handover, so “done” means used, not delivered.
• Engineers from week oneComponents are reviewed by the people who will maintain them, in the stack they already use.
• Contribution and deprecationWho proposes, who approves, how a component retires. Old names live on as aliases for one version.
• Versions and a changelogEvery change dated and versioned, the way DIXI DS went from v1.0 to v1.1.

Seven buyer criteria from a competitor’s guide, answered

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Criteria from 925Studios’ 2026 guide to choosing a design system agency, checked 1 November 2026. Ask every agency on your list the same seven questions.

A style guide documents visual rules. A UI kit is a set of drawn components. A component library is reusable components, in Figma or in code. A design system is all of these plus tokens, documentation, and the rules and people that keep design and code in sync. Most product teams past Series A need the system, not just the library.

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