{
  "id": "F24/c02",
  "rulePrefix": "F24",
  "variant": "c02",
  "ruleType": "w3c-failure",
  "caseTitle": "White foreground without background declaration",
  "scanScope": "specimen",
  "synthetic": false,
  "status": "current",
  "title": "Failure of Success Criterion 1.4.3 due to specifying foreground colors without specifying background colors (white on white)",
  "summary": "specifying white foreground color without a background color on a white page",
  "whyItFails": "Low-vision users cannot read the notice because white text on the default white page background falls below minimum contrast.",
  "principles": [
    "perceivable"
  ],
  "guidelines": [
    "1.4"
  ],
  "successCriteria": [
    {
      "id": "1.4.3",
      "name": "Contrast (Minimum)",
      "level": "AA",
      "slug": "contrast-minimum"
    },
    {
      "id": "1.4.6",
      "name": "Contrast (Enhanced)",
      "level": "AAA",
      "slug": "contrast-enhanced"
    },
    {
      "id": "1.4.8",
      "name": "Visual Presentation",
      "level": "AAA",
      "slug": "visual-presentation"
    }
  ],
  "versions": [
    "2.0",
    "2.1",
    "2.2"
  ],
  "automatable": "yes",
  "requires": [
    "html",
    "css"
  ],
  "isolated": true,
  "pairWith": [],
  "w3c": {
    "understanding": [
      "https://www.w3.org/WAI/WCAG22/Understanding/contrast-minimum",
      "https://www.w3.org/WAI/WCAG22/Understanding/contrast-enhanced",
      "https://www.w3.org/WAI/WCAG22/Understanding/visual-presentation"
    ],
    "quickref": [
      "https://www.w3.org/WAI/WCAG22/quickref/#contrast-minimum",
      "https://www.w3.org/WAI/WCAG22/quickref/#contrast-enhanced",
      "https://www.w3.org/WAI/WCAG22/quickref/#visual-presentation"
    ],
    "technique": "https://www.w3.org/WAI/WCAG22/Techniques/failures/F24"
  },
  "specimen": {
    "html": "<p class=\"f24c02-text\">White foreground text with no background color declared on this element.</p>",
    "css": ".f24c02-text { color: #ffffff; }",
    "js": "",
    "assets": []
  },
  "expectedFindings": [
    {
      "sc": "1.4.3",
      "outcome": "fail",
      "note": "Specimen demonstrates an alternate F24 failure of 1.4.3 using undeclared background with white text."
    },
    {
      "sc": "1.4.6",
      "outcome": "fail",
      "note": "Specimen demonstrates an alternate F24 failure of 1.4.3 using undeclared background with white text."
    },
    {
      "sc": "1.4.8",
      "outcome": "fail",
      "note": "Specimen demonstrates an alternate F24 failure of 1.4.3 using undeclared background with white text."
    }
  ],
  "mustNotFlag": [],
  "manualCheck": "Confirm the element sets color: #fff with no background-color on itself or a contrasting ancestor.",
  "generated": {
    "url": "https://wcagfail.patternd.io/specimens/F24/c02/",
    "lastmod": "2026-10-08"
  }
}