Fylgja Tokens

Establish a consistent design language across your projects with Fylgja Design Tokens.

This predefined set of tokens eliminates redundant variations in spacing, colors, and other design elements, ensuring a unified structure throughout your codebase.

For projects with specific requirements, Fylgja offers granular imports.

Select only the necessary token categories, such as spacing, and define your own custom color palettes.

Furthermore, Fylgja seamlessly integrates with PostCSS Jit Props, mirroring the functionality of Open Props and other design token systems, for optimized CSS output.

Installation

npm install @fylgja/tokens

pnpm add @fylgja/tokens

npx fylgja@latest add tokens

<link href="https://cdn.jsdelivr.net/npm/@fylgja/tokens/css/index.min.css" rel="stylesheet">

Usage

Once installed, you can import the full package with:

import tokens from "@fylgja/tokens";

or as CSS with:

@import "@fylgja/tokens/css";

Next to this we also offers imports for SCSS, JS and for design systems in a json format.

Each option can be import for all tokens or just the part you need.

Shadow DOM Support

For web components utilizing Shadow DOM, import the .host variants to apply tokens within the host scope:

@import "@fylgja/tokens/css/aspect-ratio.host.css";

This enables seamless integration of Fylgja Design Tokens within your custom web components.

All token categories except colors, colors.static, mq, and shadows provide a .host variant. These four don’t need one: they aren’t scoped to :root, so they already apply everywhere, including inside the Shadow DOM, without a separate host-scoped import.

PostCSS Jit Props Integration

Leverage PostCSS Jit Props to optimize CSS output by including only the tokens used in your project.

While Fylgja tokens are designed for minimal size, this integration further reduces file sizes, especially when combined with custom tokens.

Tailwind Support

The Fylgja Tokens also have a dedicated import options for TailwindCSS v4, specifically curated to augment or override relevant tokens within TailwindCSS’s default theme settings.

Previews

Aspect-Ratio

Border Radius

Conditional

Functions identically to the preceding numbered examples, except that this value reverts to 0 when the element’s boundaries intersect with the screen edges.

Border Sizes

Colors

Unlike other approaches where colors are predefined, we offer a dynamic color map. This map defines ranges of colors that can be modified using the --hue or --chroma variables.

This approach minimizes the amount of CSS required for color definitions. It simplifies color implementation by defining only the color strength (--color-{NUMBER}) and a --hue. We also provide a set of predefined hues for convenience.

Easing

Achieve smooth and natural animations with five robust timing functions: ease, ease-out, ease-in, and ease-in-out. Go beyond the basics with advanced easing options with the elastic motion.

Fonts

Mq (Media Queries)

Stay ahead of the curve with FylgjaCSS’s named media queries leveraging the @custom-media syntax even before its official CSS specification adoption.

This powerful feature is implemented for CSS through the PostCSS plugin Custom Media and is also available as SCSS variables.

Viewport Size / Orientation

--{sm,md,lg,xl,xxl}: (width >= *);
--{sm,md,lg,xl,xxl}-max: (width < *);
--portrait: (orientation: portrait);
--landscape: (orientation: landscape);

Capabilities / Input

--touch: (hover: none) and (pointer: coarse);
--stylus: (hover: none) and (pointer: fine);
--pointer: (hover) and (pointer: coarse);
--mouse: (hover) and (pointer: fine);

System Preferences

--hd-color: (dynamic-range: high);
--scheme-{dark,light}: (prefers-color-scheme: *);
--motion-{safe,reduce}: (prefers-reduced-motion: *);
--opacity-{safe,reduce}: (prefers-reduced-transparency: *);
--data-{safe,reduce}: (prefers-reduced-data: *);
--contrast-{more,less}: (prefers-contrast: *);

Shadows

Sizes

Fylgja includes a comprehensive numeric spacing scale characterized by its proportional values. This ensures predictable and consistent spacing relationships within the design system.

--size-{1-10}
--size-{12,14,16,18,20,24,28,32,36}
--size-{40,50,60,70,80,90,100,120}
--size-heading
--size-content

Z-Layer

Z-indexes don’t need high values, just a currated list of values. If you need a higher z-index then your probley trying to override an exciting behavior and should consider refactoring the z-index values or wrap the z-indexes inside a new stacking layer.