quarto-dev / quarto-dev/quarto-cli
a11y: active TOC link fails color-contrast
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Description
Reported in #14373.
Repro: https://github.com/alexpghayes/quarto-accessibility-reprex (post/post-1)
axe rule: color-contrast · impact: serious · tag: wcag2aa (1.4.3)
Target: #toc-section-1.nav-link.active — the currently-scrolled TOC entry.
The active TOC link is rendered with a lighter color against the page background, falling below WCAG AA 4.5:1. The contrast of the non-active entries appears fine — only the .active state is affected.
Part of #8706.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the issue with the linked quarto-accessibility-reprex at post/post-1, then inspect the styles for #toc-section-1.nav-link.active. Use the axe color-contrast check to confirm the active state reaches WCAG AA 4.5:1 while preserving the existing contrast of non-active entries.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- css
- Domain
- accessibility, frontend
- Issue type
- Bug
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 65/100