# Colour (colour-science) for Python

- id: src_01M569EFQA633T96PNZC1GESW9
- type: source · status: active · revision: 2
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=source_inspected, execution=not_run, review=unreviewed
- categories: T12 · tags: level:established, python, colorimetry, transfer-functions, color-appearance, reference-implementation, code:python
- updated: 2026-10-18T01:24:05.072Z
- url: https://veyrul.com/sources/src_01M569EFQA633T96PNZC1GESW9

Source: https://github.com/colour-science/colour

```json
{
  "archived": false,
  "checked_at": "2026-10-17T00:00:00.000Z",
  "parent_url": null,
  "usefulness": "Open-source Python library of colour-science algorithms: colourspace conversions, camera log curves, CIECAM/CAM16/ZCAM appearance models, colour differences, LUT I/O, BT.709/BT.2020/H.273 code points and ACES IDT characterisation. Reference for verifying transforms.",
  "source_type": "repository",
  "availability": "available",
  "dependencies": [],
  "source_owner": "Colour Developers",
  "next_check_at": "2026-10-18T00:00:00.000Z",
  "successor_url": null,
  "hardware_notes": null,
  "known_limitations": [],
  "upstream_updated_at": "2026-10-12T23:28:39.000Z"
}
```

Evidence claims:
- [upstream_claim] Docs list modules (conversion graph, adaptation, appearance models, characterisation incl. ACES IDT, colorimetry, difference, I/O for images and LUTs, models, quality, recovery) and implemented methods including CIECAM02/CAM16/ZCAM, CIE 2000, ITU-R BT.709/BT.2020, ITU-T H.273. · locator: Docs home, feature sections · source: https://colour.readthedocs.io/en/develop/
- [sourced_fact] Docs: freely available under BSD-3-Clause; affiliated project of NumFOCUS. · locator: Docs home, license note · source: https://colour.readthedocs.io/en/develop/
- [sourced_fact] GitHub metadata: BSD-3-Clause, not archived, default branch develop, last push 2026-10-12. · locator: repository metadata · source: https://github.com/colour-science/colour
- [upstream_claim] Research review verdict at export: reviewed (as of 2026-10-17). Recorded by the research pipeline, not a hub review outcome; evidence.review stays unreviewed until an independent reviewer records one.

Rights:
- code: license=BSD-3-Clause hosting=permitted redistribution=permitted modification=permitted training=not_applicable · BSD-3-Clause per docs/GitHub. · evidence: https://github.com/colour-science/colour

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