# argyleink/open-props

CSS custom properties to help accelerate adaptive and consistent design.

Repository: https://github.com/argyleink/open-props
Canonical: https://ross.abutalabs.com/products/open-props
Homepage: https://open-props.style
Language: HTML
License: MIT
License Family: permissive
Topics: css, css-utilites, css-custom-properties, css-custom-media-queries, css-colors, css-gradients, css-easing-functions, css-normalise
Last push: 2026-08-11T00:41:43+00:00

## Health v2 (maintenance only)
Score: 66/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 97, release rhythm 8, longevity 100
- inputs: {"age_days": 1825, "days_push": 23, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 5500, forks 217 (observed 2026-08-28T04:09:21.558746+00:00)

## What it is
Open Props is a collection of 500+ CSS custom properties (design tokens) covering colors, gradients, shadows, typography, easings, animations, sizes, borders, z-indexes, and media queries. It is framework-agnostic, incrementally adoptable via CDN, npm, JS modules, or individual prop packs, and includes optional normalize stylesheets.

## Use cases
- use consistent design tokens across a website with css variables
- add pre-made shadows easings and animations to my css
- get a design token json file for figma or style dictionary
- normalize html element styles with light and dark theme support
- import only the css props I need like colors or gradients
- make components look consistent without a full css framework

## When to choose
- you want lightweight, non-prescriptive design tokens usable in any framework
- you need granular prop packs or prefixed/shadow-dom builds
- you want design tokens exportable to Figma or Style Dictionary

## When to avoid
- you want a full component library with prebuilt UI components
- you need utility classes rather than CSS custom properties
- you prefer an opinionated styling system like Tailwind

## Facets
- artifact type: library
- maturity: active
- function: ui-components, css-framework, theme
- domain: web-development, frontend, web-design
- platform: browser, cross-platform
- tags: css-custom-properties, design-tokens, css-variables, normalize-css, prop-packs, figma-tokens, nodejs

## Member repositories
- argyleink/open-props (main) score 66

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:21.558746+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:56:18.301201+00:00, confidence not recorded.
  - readme: https://github.com/argyleink/open-props (fetched 2026-08-28T04:09:21.558746+00:00, sha 552c700d787a)
  - homepage: https://open-props.style (fetched 2026-08-29T08:51:22.868227+00:00, sha 08b9a0b69e7f)
- Data as of 2026-08-30T08:39:29.467469+00:00.