Build Data Views for Accessibility
If you want to make your views accessible to as many people as possible, or if you work in an environment that is subject to US Section 508 requirements, other accessibility-related laws and regulations, you can use Tableau to build data views that conform to the Web Content Accessibility guidelines (WCAG 2.0 AA). This includes building views that are accessible to users who use screen readers, braille keyboards, keyboard-only navigation, and so on.
View controls that support accessibility
To create an accessible view, use Tableau Desktop to create a view that includes WCAG-conformant elements, and then publish and embed that view in a web page that conforms to Web Content Accessibility guidelines (WCAG 2.0 AA).
The example below shows a view with a scatter plot chart and includes various elements that you can use to be WCAG conformant. For more details, see Best Practices for Designing Accessible Views and Author Views for Accessibility.
Note: The color blind palette can help you select colors that can be recognized by users with visual impairments. When you assign colors to different dimension values make sure that they provide enough contrast and aren't too close to each other on the light-dark spectrum.
Additional support for accessible views
In addition to the controls shown in the illustration, Tableau also supports the following features to help you create accessible views:
Programmatic context for assistive technologies (using ARIA roles)
A text equivalent for charts and visualizations
Compliance with contrast standards
Authentication when signing in to Tableau Server for embedded views
Note: If you use a data source that requires authentication to access it, that authentication page does not conform to the WCAG 2.0 AA guidelines. To prevent the authentication page from showing, you can embed the credentials for the data source when you publish. For information about how to embed credentials for the data source, see Set Credentials for Accessing Your Published Data, "Set the authentication type", Embedded password section.
The following external resources can help you when designing your views for accessibility.
Web Content Accessibility Guidelines (WCAG 2.0)
Disclaimer: Although we make every effort to ensure these links to external websites are accurate, up to date, and relevant, Tableau cannot take responsibility for the accuracy or freshness of pages maintained by external providers. Contact the external site for answers to questions regarding its content.
For information, guidelines and examples about how to create accessible views, refer to the following topics in this section.