When text contrasts poorly with its background, it makes reading more difficult, especially for people with low vision. The same goes for icons and situations where highlighting is used to draw attention (such as the hover effects on links).
The contrast of icons and graphical objects is just as important as that of text. Use sufficient contrast for all elements on the screen, with a minimum contrast ratio of 3:1.
Color-contrast-checking tools can compare two colors and report on the contrast ratio between them. Some tools will allow you to adjust these values until the ratio is sufficient, helping you to choose a color scheme that avoids contrast problems.
People use Contrast Themes to improve their experience of sites by radically changing their visual display to enhance perception and access. Site designs often don't need to account for them but it's worth checking whether there are barriers present or...
Data visualizations are often not accessible due to low color contrast, insufficient labels, or images without alt text. Learn to create charts, graphs, and infographics that include everyone.
Providing solid structure is a core accessibility principle that you can apply to content in a range of digital formats, not only HTML.
Whether you are sending an email, writing a document, managing a web page, or reviewing a Canvas course, these essentials can help you make your content accessible and ensure your message comes through clearly to your audience.
To find out if your website is accessible, a good place to start is with tools that are automated to check accessibility. These tools save time for both developers and content creators, and they often catch errors that might not have been obvious.
Extending web site and application functionality through custom widgets and controls can significantly improve the user experience for everyone, making complex tasks possible via a web interface without requiring specialist software.
PDFs are often not structured properly, which can create barriers for people. Fortunately, there are accessibility best practices that can help make PDFs more accessible for everyone.