CSS custom properties to help accelerate adaptive and consistent design.

Halfmoon is a highly customizable, drop-in Bootstrap replacement. It comes with three built-in core themes, with dark mode support for all themes and components.

Change CSS theme with toggle, buttons or select using CSS custom properties and localStorage

A lightweight front-end component library for developing fast and powerful web interfaces.

VSCode extension to support CSS Variables Intellisense

Sass mixin to use CSS Custom Properties with Sass

Specify helps you unify your brand identity by collecting, storing and distributing design tokens and assets — automatically.

The flexible and lightweight CSS library designed to streamline your web development.

A React component for applying CSS Variables (Custom Properties)

Minifies / Obscures CSS variable names. Inspired by webpack's obscure plugin, though I never read its codebase

🌐📄/📏 – World Paper / Sizes

UX Select is a lightweight Native JavaScript plugin that replace native select elements with customization

Bring dynamic styling into your React components with css-vars-hook. Simple and intuitive hooks for managing CSS Custom Properties. Integrate styles with component logic.

Adds accent colors for more dynamic and flexible color utilization.

Export your TailwindCSS theme colors as css custom properties.

A shorter SCSS access to CSS custom properties.

A lightweight, modern theming library based on CSS variables and the setter/getter pattern.

Front-end framework with a built-in dark mode and full customizability using CSS variables; great for building dashboards and tools.

Easings (cubic-bezier timing functions) as custom properties and SCSS variables.

The W. W. Norton & Company design system