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Update index.md (#28427)

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Add a paragraph about the requirements for colour contrast between foreground and background.
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Alice Rees
2019-01-28 19:57:20 +00:00
committed by Christopher McCormack
parent 826d4df47c
commit 12f8b5f810
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guide/english/accessibility/index.md
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@ -20,6 +20,8 @@ Just like alt text has the ability to help people that are visually impaired, pr
A high level test of a websites accessibilty can be conducted through several online tools. One is a popular Chrome Browswer extension known as <a href="http://wave.webaim.org/">WAVE</a>. This will provide you with areas to focus on to present a usable experience for all visitors to the site.
The W3's WCAG (Web Content Accessibility Guidelines) also recommend a certain level of colour contrast for text, stating that the foreground and background should be clearly separate. Because larger text is already easier to read than smaller text, the colour contrast requirements are lower. [Learn more about the W3's colour contrast guidelines](https://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-contrast.html).
Copyright &copy; 2005 <a href="http://www.w3.org" shape="rect">World Wide Web Consortium</a>, (<a href="http://www.csail.mit.edu/" shape="rect">MIT</a>, <a href="http://www.ercim.org" shape="rect">ERCIM</a>, <a href="http://www.keio.ac.jp" shape="rect">Keio</a>,<a href="http://ev.buaa.edu.cn" shape="rect">Beihang</a>). http://www.w3.org/Consortium/Legal/2015/doc-license
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