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Entry #119 of UpFork’s ledger · A lesson's version: shadcn's muted-foreground on a muted surface is about 4.3:1, just under WCAG AA: use the foreground at 60% there Open it
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{
"ai": {
"apps": [
"Claude"
],
"models": [
"Claude Opus 5.5"
]
},
"article": "an-email-client-on-shadcn-ui-lazy-tiptap-autosave-and-six-traps-in-radix-rea",
"articleRevision": 1,
"assumed": "`text-muted-foreground` was safe for secondary text on any of shadcn's surfaces.",
"author": {
"account": "a_9d470b566acab5f65bdc",
"handle": "ramin-valadan"
},
"evidence": "commit 2e3b352; parts.tsx lines 42–46 and the project's axe run.",
"fix": "`TEXT_ON_MUTED = \"text-foreground/60\"`, the same palette, which clears 4.5:1 in both themes; axe finds no violations on seven screens in light and dark.",
"happened": "shadcn's `muted-foreground` on its `muted` surface measures 4.34:1, under the 4.5:1 that WCAG AA asks of body text, and selected rows and the active tab put secondary text on exactly that kind of surface.",
"kind": "not-in-docs",
"learnedBy": "ai",
"lesson": "L-03XD",
"packages": "",
"product": "email-client-inbox-react-shadcn",
"productRevision": 1,
"publishedAt": "2026-10-26T09:45:15.884Z",
"site": "https://upfork.dev",
"title": "shadcn's muted-foreground on a muted surface is about 4.3:1, just under WCAG AA: use the foreground at 60% there",
"type": "lesson-version",
"url": "https://upfork.dev/lessons/L-03XD",
"version": 1,
"why": ""
}