spec 2 linked patterns checked
WCAG 2.2 Understanding SC 1.4.1 Use of Color
Explains that color must not be the only visual means of conveying information and recommends additional visible cues such as text, shape, pattern, or luminance differences.
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What this source can teach
Use this source to check a technical or accessibility requirement against its exact wording and scope.
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Pattern Decisions This Source Supports
| Pattern | Supported decision | Required contract | Claim note |
|---|---|---|---|
| Search result highlighting | Choose search result highlighting when returned results need visible evidence of where the submitted query matched. | A highlight represents the submitted query or configured highlight query, not a decorative emphasis chosen independently from search matching. | WAI documents that color must not be the only way information is distinguished, supporting non-color match cues. |
| Warning text | Choose warning text when one severe consequence needs to be noticed before the user acts or fails to act. | The warning appears in the reading order before the action or answer it qualifies. | WCAG use-of-color guidance supports pairing warning color and iconography with explicit text. |
Comparisons supported by this source
- Search result highlighting vs basic search vs search suggestions vs no-results recovery
WAI explains that information conveyed by color needs an additional visual cue, which applies to highlighted match styling.
- Warning text vs alert vs inline message vs error summary
WCAG use-of-color guidance supports pairing warning color and iconography with explicit text.
Evidence Role
This source is treated as spec evidence. Its value comes from the specific claims and setting described above.
Publisher: W3C Web Accessibility Initiative. Last checked: .