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‍Matter Design System

An open source Design system by Tcules. Built using design tokens, it includes WCAG 2.1 AAA compliance and thoughtful UX patterns.

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The 'Why' Behind MDS

Growing with the community

We built Matter in public because strong systems improve through use, critique, and contribution. It is shaped by real design and delivery needs, not isolated theory.

Our underlying philosophy

Matter is built on clarity over clutter. Every token, component, & naming decision is designed to reduce friction, improve judgment, & support repeatable interface work.

Commitment to quality

By treating the UI as a system, not a collection of screens, Matter helps teams maintain consistency, accessibility, & implementation discipline across growing products.

Features

Prioritise the UX & usability of UI components with superlative documentation

This design system will allow you to design intuitive workflows with the help of the extensive library of UI components & documentation.

Fully composable design system that treats slots as first class citizens for bigger components

Design & build larger components with the help of the smaller slots components making the design system fully composable. Design & build larger components with the help of the smaller slots components making the design system fully composable.

Intuitively named design tokens based on a designer’s mental model of taking decisions

Power of Figma design tokens with intuitive nomenclature will help you design complex products with ease & hand-off to your developers effortlessly

Layers named using the industry standard BEM naming convention for markup

Front-end (HTML) code compliant layer structure & use of BEM naming convention ensures all components are ready to export from the first minute of file creation

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Fully optimised for
 Tokens Studio

Fully accessible palette of 13 colors

Over

‍10,000+

components & variants

Variables & Styles

UX driven design system

The ultimate design system repository you need

Flexible

Our design system offers unmatched flexibility, allowing you to adapt & customise elements effortlessly & tailor it to your unique brand identity & design requirements.

Scalable

Our system was designed with growth in mind. So with scalability at its core, from small to large projects, it adapts as you grow.

Accessible

Accessibility is paramount in our design system and so we prioritised accessiability, ensuring that your digital products are usable by everyone.

Efficient

Streamline your workflow & reduce design iterations by accessing a comprehensive library of well-documented components & guidelines.

Designed for experts & those aspiring to be.

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Design system Matters