WCAG 3.0 is an active W3C Working Draft in development by the AGWG. Requirements, assertions, the conformance model and reporting tiers are still being developed and may change. The latest published draft is the 10 September 2026 Working Draft; this site follows the editors’ draft, which also includes exploratory provisions.
developingCore requirement
Hue Not Relied On
Group: images-and-media • Guideline: single-sense
Summary in Plain English
Hue alone cannot be the only carrier of information. Artistic or expressive content, and content made for a device that can only present hues, are exempt.
Why It Matters
Around one in twelve men has a colour vision deficiency, and hue is also lost in greyscale printing, high-contrast modes and bright sunlight.
Content is designed only for a device that is limited to presenting hues.
Notes in the draft
Information conveyed includes but is not limited to presenting data or meaning, indicating an action, prompting a response, distinguishing between items, conveying boundaries. Artistic expression is not part of information conveyed.
Information is not conveyed by hue alone.
:::note
Information conveyed includes but is not limited to presenting data or meaning, indicating an action, prompting a response, distinguishing between items, conveying boundaries. Artistic expression is not part of information conveyed.
:::
:::except-when
* Content is artistic or expressive.
* Content is designed only for a device that is limited to presenting hues.
:::