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Last modified by Anna Paul-Hasenfuss on 19.06.2025
From version 10.2
edited by Anna Paul-Hasenfuss
on 18.06.2025
Change comment: There is no comment for this version
To version 11.1
edited by Anna Paul-Hasenfuss
on 18.06.2025
Change comment: There is no comment for this version

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351 351  **Colour should never be used as the only means of highlighting information**. Instead, supplement information such as notices or error messages with a clearly recognisable icon and additional text. Avoid instructions or descriptions that refer only to a colour or other visual cues, e.g. ‘Click on the green button’.
352 352  
353 353  {{panel title="Further information"}}
354 -* [[Kontrastrechner von leserlich.info>>url:https://www.leserlich.info/werkzeuge/kontrastrechner/index.php||shape="rect"]]
355 -* [[Farben auswählen mit color.review (EN)>>url:https://color.review/||shape="rect"]]
356 -* [[Kontraste prüfen mit dem WCAG contrast checker (EN)>>url:https://contrastchecker.com/||shape="rect"]]
354 +* [[Contrast calculator from leserlich.info>>url:https://www.leserlich.info/werkzeuge/kontrastrechner/index.php||shape="rect"]]
355 +* [[Choose your colours with color.review (EN)>>url:https://color.review/||shape="rect"]]
356 +* [[Check your contrasts with the WCAG contrast checker (EN)>>url:https://contrastchecker.com/||shape="rect"]]
357 357  {{/panel}}
358 358  
359 359  
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360 360  == Useful tools ==
361 361  
362 362  * Check websites with [[WAVE Toolbar>>url:https://wave.webaim.org/||shape="rect"]].
363 -** [[WAVE für Google Chrome>>url:https://chrome.google.com/webstore/detail/wave-evaluation-tool/jbbplnpkjmmeebjpijfedlgcdilocofh||shape="rect"]] (browser plug-in)
364 -** [[WAVE für Firefox>>url:https://addons.mozilla.org/en-US/firefox/addon/wave-accessibility-tool/||shape="rect"]] (browser plug-in)
365 -* Free open source screen reader for Windows: [[NVDA herunterladen>>url:https://www.nvaccess.org/download/||shape="rect"]]
363 +** [[WAVE für Google Chrome>>url:https://chrome.google.com/webstore/detail/wave-evaluation-tool/jbbplnpkjmmeebjpijfedlgcdilocofh||shape="rect"]] (browser extension)
364 +** [[WAVE für Firefox>>url:https://addons.mozilla.org/en-US/firefox/addon/wave-accessibility-tool/||shape="rect"]] (browser extension)
365 +* Free open source screen reader for Windows: [[NVDA download>>url:https://www.nvaccess.org/download/||shape="rect"]]
366 366  * [[Checkliste: barrierefreie PDF-Dokumente>>url:https://www.einfach-fuer-alle.de/artikel/checkliste-barrierefreie-pdf/||shape="rect"]] from Einfach für alle