It is important to make sure that your documents are accessible to as many people as possible. Please write reports and other research documentation with accessibility in mind. For tutorials, checklists, and guidelines, see https://www.section508.gov/create/documents/
Excerpt from Texas Department of Information Resources https://dir.texas.gov/electronic-information-resources-eir-accessibility/eir-accessibility-roles-responsibilities/eir :
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"Print to PDF" will strip out all accessibility tags previously added in MS Office applications. Instead, use "Export" or "Save As PDF" when converting your document. |
Non-text content (images and equations) must include alt text that screen readers can use to describe the content.
A decision tree for creating alt-text https://www.w3.org/WAI/tutorials/images/decision-tree/
Before finalizing a document, screenshot and re-insert multi-component charts, graphs, equations, or graphics designed using Smart Art so that alt-text can be added to describe the whole image instead of writing alt-text for each individual component (e.g., chart lines, arrows, photo collages, photos with overlay drawings, etc) |
Color contrast between background and text must be compliant to WCAG 2.0 Level AA standards, at a minimum. See A11y Color Palette, WebAIM Contrast Checker, Paciello Group's Colour Contrast Analyser.
To test color contrast, you need the exact value for each color used. If testing colors that are on a website, try a color picker browser add-on to find this value. For desktop applications, free software such as Paciello Group's free Colour Contrast Analyser may help. |
Make sure that graphs and other images do not rely solely on color to convey information. If necessary, use online tools such as Coblis or Sim Daltonism to test your images.
Even if you are color-coding charts, make sure values or labels are included with each bar for screen readers. If the color differences are significant to understanding the chart, make sure that they have sufficient color contrast and difference in darkness for a colorblind user to interpret.
Example 1. The below bar chart includes labels on each bar. Color contrast needs to be checked to make sure that there is enough contrast between the white text (foreground) and the red, orange, blue, and gray bars (background). In addition, if the bar colors are significant and correspond with a key, then the contrast between each bar color also needs to be checked.
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To check the foreground (text) against the background (bar), check the color codes on WebAIM's Contrast Checker or other tool.
Accessible Tables: A PowerPoint presentation by Michael Molina, Oklahoma DOT, June 9, 2021. https://transportation.libguides.com/ld.php?content_id=61899149