BC02 — Accessibility / RGAA audit (Retrieva)
Bloc: BC02 Concevoir & développer · Date: 2026-09-06 · Target: Retrieva frontend (https://retrieva.online) · Tool: Lighthouse (headless Chrome) — automated RGAA-aligned checks.
Result: 96 / 100 (gate: ≥ 80 ✅)
The accessibility gate flagged in platform-backlog#195 was originally scoped (in error) to the
ktayl-solution public site; the correct target is the certification project — Retrieva. Audited
there, Retrieva's public frontend scores 96/100, already above the required threshold.
Automated findings (1 issue)
| Weight | Check | Elements | Detail |
|---|---|---|---|
| 7 | Insufficient colour contrast | 1 | A muted badge chip: foreground #79879a on background #1b222d = ratio 4.37 (WCAG AA needs 4.5 for this size). Selector: div.min-h-screen > section.container > div > div.inline-flex (bg-muted pill on the hero). |
Fix: nudge the muted-foreground token slightly lighter (e.g. #8a97a8+) → ratio ≥ 4.5 →
100/100. Single CSS-variable change.
Manual review still required (RGAA is 106 criteria)
Lighthouse automates a subset; 10 manual checks remain for a formal RGAA dossier — keyboard navigation, focus order/visibility, screen-reader labelling, reflow/zoom, and content structure. These are the real BC02 accessibility documentation work (on Retrieva, not ktayl).
Evidence
Full Lighthouse report (HTML + JSON) is stored with this section:
static/certification/retrieva-a11y-report.html— the interactive reportstatic/certification/retrieva-a11y-report.json— raw scores + audit details
Re-run: lighthouse https://retrieva.online --only-categories=accessibility --chrome-flags="--headless".