This tool also excels by offering a slider to lighten/darken your color inputs until it meets contrast requirements.Ĭolour Contrast Analyzer: The Paciello Group provides this desktop software to test color contrast, and it includes an eyedropper tool so you can select colors without needing to identify their hex values first. This software must be installed on your computer with the assistance of the IT department. The tool allows you to plug in two different colors by their hex values, and it calculates the contrast between them, and if they meet or fail different WCAG color contrast standards. WebAIM Color Contrast Checker: A web-based contrast tool by the experts at WebAIM. There are a variety of web-based and desktop software to tell you the current color contrast, and provide suggestions for different colors that meet different tiers of contrast requirements. While automated testing tools are adept at identifying some color contrast issues, they don’t typically tell you what colors you should use if the current color contrast is insufficient. These share the same limitations as website-testing applications, but can be useful to identify problems before they get shared to a wider audience. This creates a slightly busier interface, but may help people identify the exact areas of their page that require attention.īuilt-In automated accessibility testing tools in content-authoring software – MS Office products including Word, Excel, and PowerPoint, as well as Adobe Acrobat and other platforms, have built-in accessibility testing tools. Similar to SiteImprove, but it also adds icons to the page where the accessibility issues can be found. WAVE toolbar – a free browser plugin for Chrome and Firefox that detects issues on the current page with a single button click. SiteImprove – a free browser plugin for Chrome and Firefox that detects issues on the current page with a single button click. That images and videos are free of text.Color contrast against a pattern background, an image background, or a video.Anything to do with quality of content – quality of alt text, quality of video captions.That there is exactly 1 per page)Īutomated testing tools are inconsistent or entirely unable to catch the following types of errors: Color contrast with solid-colored text against solid-colored background.The best tools will catch about 33% of errors, and automated testing tools produce both false positive and false negative errors.Īutomated testing tools are good for catching the following types of errors: It’s important to understand that all automated testing tools are imperfect. Automated Testing ToolsĪutomated testing tools are useful as easy, first-pass methods to identify the biggest accessibility issues. Understanding the types of tools available to you, and their respective strengths and limitations, will help you choose appropriate tools to help streamline the testing process. If neither of the above help, please give us more details on your specific issue so that we may open a bug and investigate.There are a variety of tools to assist you in performing an accessibility self-evaluation of your website or other digital content.Here's the bug, please let us know if this is what you're seeing: We resolved that bug in a previous version of Chrome than the one currently shipping on the Stable channel. The issue was that the Play Store apps used a separate screen reader from the one on the main operating system and it could be stuck on even after toggling the screen reader off with ctrl + alt + z. There was a bug in the past regarding apps downloaded from the Play Store on Chromebooks.The other is Select to Speak which can be disabled in Settings. One is ChromeVox which is the screen reader which can be turned off by pressing Ctrl + Alt + Z or by disabling in settings. There are two services on your Chromebook that may be speaking.In the resulting ChromeVox Options page, select one of the installed MacOS voices rather than a Google voice. Activate the “Options” button for the ChromeVox extension.ĥ. It is possible for ChromeVox to be active even when no spoken feedback is being provided, and I find it difficult or impossible to use VO to interact with web pages if ChromeVox is active.Ĥ. If you are unable to use VO to interact with the page, try pressing Command + Control+AA Use standard VO commands to interact with the resulting page and navigate to the ChromeVox extension. In the Chrome address/search bar, type chrome://extensions and press Return.ģ. I was able to get back some level of ChromeVox speech by switching the ChromeVox voice from a Google voice to one of the Mac voices using the following steps.Ģ. I am experiencing the same problem you mentioned.
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