Accessibility guidelines

Adobe's design system behind its creative and document products, with shared foundations, tokens, and component implementations for React and Web Components.

The Australian agriculture department's open source design system for import and export services, offering accessible React components, templates, and a starter kit.

Alaska Airlines' Auro design system, built around framework-agnostic web components, design tokens, and CSS guidelines shared across Alaska and Hawaiian brands.

The open source design system AWS uses for its consoles, offering accessible React components, interaction patterns, and design resources for complex web applications.

Apple's design guidance for apps across iOS, iPadOS, macOS, watchOS, tvOS, and visionOS, backed by official Figma and Sketch templates, SF Symbols, and fonts.

The Swedish Public Employment Service's design system, with a Figma UI kit, design tokens, and Stencil web components usable from Angular, React, or plain HTML.

Atlassian's unified design language for Jira, Confluence, and its other apps, covering tokens, components, accessibility, and AI patterns for its Rovo experiences.

Aviva's digital standards hub and ION atomic design system, setting design, code, and accessibility expectations for Aviva websites, apps, and emails.

The BBC's Global Experience Language, a shared design framework with guidelines, articles, and playbooks for consistent experiences across BBC digital services.

The U.S. Centers for Medicare & Medicaid Services' open source design system for Section 508 compliant, responsive sites, with themes for CMS.gov, HealthCare.gov, and Medicare.gov.

Dell's token-first design system, now in version 3, with Figma libraries, code libraries, data visualization, and AI design resources for Dell products.

Denmark's free, open source common design system for building simple self-service solutions on borger.dk and Virk, with styles, components, and accessibility guidance.

eBay's Evo brand and design system, documented in the eBay Playbook with foundations, an accessible color palette, iconography, and product UI guidance.

Elastic's EUI framework, the React component library and design system behind Kibana and other Elastic products, with tokens, patterns, and data visualization guidance.

Esri's Calcite Design System for consistent ArcGIS experiences, offering a UI kit, icons, color schemes, and a web component library for mapping apps.

GitHub's open source design system, with Primer Product UI and Brand UI, Primitives design tokens, Octicons, and accessibility guidance for building GitHub.

GitLab's Pajamas Design System, with brand and product guidelines, design tokens, Tailwind utilities, and a Figma UI kit for building the GitLab product.

Material Design 3, Google's open source design system for adaptive, expressive products, with tokens, components, and implementations for Compose, Flutter, and the web.

The UK government's design system for public services, with research-backed styles, components, and patterns implemented in the open source GOV.UK Frontend package.

The City of Helsinki's open source design system, bringing guidelines, design assets, and component libraries together for a consistent, accessible digital city brand.

IBM's open source design system built on the IBM Design Language, with React and Web Components libraries, design kits, guidelines, and an active contributor community.

Sirio, the design system of Italy's social security institute INPS, uniting brand guidelines, product rules, writing guidance, and UI kits for citizen services.

Kajabi's Sage design system, the source of truth for its creator platform, with components written for both Rails and React plus Sass-based foundations.

Kiwi.com's open source Orbit design system for travel products, with React components, design tokens, Tailwind presets, and a free public Figma library.