Slate adheres to the Web Content Accessibility Guidelines (WCAG) 2.2 AA standard to ensure accessibility for all users. The World Wide Web Consortium (W3C) developed this technical standard to provide a framework for making web content more accessible to everyone.
By providing accessibility features throughout its design, Slate maintains the presentation of content and capabilities across multiple browsers, screen readers, and assistive devices.
See also:
The Slate VPAT (Voluntary Product Accessibility Template) PDF, in the Files section of this page
Onscreen keyboard
Slate supports keyboard navigation, so users can move through the application using only the keyboard.
To access the Windows onscreen keyboard, press Windows+Control+O. For Mac, press CMD+Option+F5.
Slate forms are navigable by keyboard access. These forms use labels, fieldsets, legends, and other aria attributes and are navigable using screen readers and other assistive devices. These forms are all routinely tested using JAWS (Job Access With Speech) and similar readers and devices.
Screen reader support
The screen reader will read out the page content on any Slate page you wish to access, including headings, links, and other interactive elements.
High-contrast themes
Slate also offers two high contrast themes that make it easier for users with visual impairments to read the content on the page. The High Contrast theme increases the general color contrast throughout Slate. High Contrast Twilight is a “dark mode” theme that displays primarily in high-contrast black and white.
How to enable high contrast themes:

Select your user icon in the top right corner of the platform.
Select Set Theme.
Select your desired high contrast theme from the menu.
Select Save.
Closed captions
For users with hearing impairments, Slate offers closed captions for videos and audio content in Slate Share. Closed captions provide a written transcript of the audio content, making it accessible to users who can't hear the audio.
To enable closed captions, select the CC button as the video or audio plays.