# Ontario Design System — Design Style Reference

> **Unofficial, community-authored reference.** Compiled by [designsystems.one](https://www.designsystems.one). Not affiliated with, endorsed by, or sponsored by Government of Ontario. "Ontario Design System" and related marks belong to their respective owners. This document describes publicly observable style attributes in original words — it contains no copied documentation, logos, icon artwork, or original token files. Always defer to the official source for canonical, current values.

**System:** Ontario Design System
**Owner:** Government of Ontario
**Official documentation:** https://designsystem.ontario.ca/


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## Summary

Design system for Ontario.ca and the Government of Ontario's digital services.

## Engineering profile

- **Ships for:** CSS-only
- **Token pipeline:** Custom
- **Source model:** Open source

## Apply this style with an AI tool

Paste this into your AI coding assistant as a direction, then iterate:

> Design in the spirit of Ontario Design System by Government of Ontario — Design system for Ontario.ca and the Government of Ontario's digital services. Match the intent, not the pixels; adapt it to my product rather than cloning it.

## Official reference

- [Ontario Design System documentation](https://designsystem.ontario.ca/)

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_Generated by [designsystems.one](https://www.designsystems.one/design-systems/ontario-design) — a catalogue of public design systems. Style facts are reported for reference and education; adapt them to your own product. Report issues or takedown requests via the site._