# axismaps/colorbrewer

Repository: https://github.com/axismaps/colorbrewer
Canonical: https://ross.abutalabs.com/products/colorbrewer
Homepage: https://colorbrewer2.org
Language: JavaScript
License: Apache-2.0
License Family: permissive
Last push: 2026-02-25T20:14:17+00:00

## Health v2 (maintenance only)
Score: 63/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 69, release rhythm 35, longevity 100
- inputs: {"age_days": 4874, "days_push": 189, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1098, forks 101 (observed 2026-08-28T04:03:34.850597+00:00)

## What it is
ColorBrewer is a web tool for choosing color schemes for choropleth maps, based on cartographer Cynthia Brewer's research. It provides colorblind-safe, print-friendly palettes exportable as ASE, GIMP, JavaScript, and CSS formats.

## Use cases
- pick a color scheme for a choropleth map
- find colorblind-safe color palettes for data visualization
- export map color schemes as CSS or JavaScript arrays
- choose sequential diverging or qualitative palettes for maps
- get print-friendly colors for cartography

## When to choose
- you need research-backed color schemes for maps or data classes
- you need colorblind-safe or print-friendly palettes
- you want ready-to-use palette exports in multiple formats

## When to avoid
- you need a general-purpose color picker or design tool
- you need programmatic palette generation beyond the fixed ColorBrewer schemes
- you need a native desktop color tool

## Facets
- artifact type: application
- maturity: active
- function: data-visualization, ui-components
- domain: data-visualization, web-development
- platform: -
- tags: color-schemes, cartography, choropleth, colorblind-safe, color-palettes, maps, web-server, javascript

## Member repositories
- axismaps/colorbrewer (main) score 63

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:34.850597+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 2026-08-30T06:46:14.781898+00:00, confidence not recorded.
  - readme: https://github.com/axismaps/colorbrewer (fetched 2026-08-28T04:03:34.850597+00:00, sha 6358e28ca883)
  - homepage: https://colorbrewer2.org (fetched 2026-08-29T12:49:24.483272+00:00, sha 03d66f65708c)
- Data as of 2026-08-30T08:39:29.467469+00:00.