4. https://webaim.org/resources/contrastchecker/
5. https://www.w3.org/WAI/
6. https://www.disabled-world.com/disability/accessibility/websitedesign.php
7. https://www.wuhcag.com/category/articles/
8. https://www.section508.gov/
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4. https://webaim.org/resources/contrastchecker/
5. https://www.w3.org/WAI/
6. https://www.disabled-world.com/disability/accessibility/websitedesign.php
7. https://www.wuhcag.com/category/articles/
8. https://www.section508.gov/