Don’t use presentation that relies solely on colour.


Users with visual impairments, including difficulties perceiving colour, may need help when you use colour on your website to present information.

You can solve this by using other identifiers such as labels, shapes and patterns, issue.

How to Pass

Ensure no instructions rely on colour aloneEnsure that no information (like charts

1.4.1 – Use of Colour (Level A)Read more

Instructions don’t rely solely on sensory characteristics.
“Sensory characteristics” is an important but complicated-sounding phrase in web accessibility. It’s actually far less complicated than it sounds. The sensory characteristics of components are things like shapes, sounds, positioning, orientation, sound, colour and size.

You’ll often come across sensory characteristics in instructions to users. Saying things like “Use the

1.3.3 – Sensory Characteristics (Level A)Read more

Present content in a meaningful order.
The meaning of content on your website relies on the order you present it. For example, in English we read from left to right and read a left-hand column before a right-hand column.
Users who rely on assistive technology (such as a screen reader) to interpret content, require content to be

1.3.2 – Meaningful Sequence (Level A)Read more

Content, structure and relationships can be programmatically determined.
All users benefit when your website structure is logical and each section of content has a clear relationship with the content around it. Visual cues like headings, bullet points, line breaks, tables, bolding, underlining links and other formatting choices help users understand the content.
Assistive technology often relies on

1.3.1 – Info and Relationships (Level A)Read more

Provide audio description or text transcript for videos with sound.

Users who are blind or visually impaired need alternatives for video content.

Adding an audio description track or text transcript helps more users enjoy your content. These both help visually impaired users when the video’s regular soundtrack doesn’t convey all the information – for example, because the

1.2.3 – Audio Description or Media Alternative (Pre-recorded) (Level A)Read more

Provide captions for videos with audio.
Users with hearing impairments may not be able to perceive the sound on a video. Presenting the video’s content in captions means these users can fully enjoy the content.
How to Pass

Add captions to all videos with sound.
Caption all spoken word.
Identify speakers.
Caption non-speech information (such as sound effects).

You don’t need to

1.2.2 – Captions (Pre-recorded) (Level A)Read more

Provide an alternative to video-only and audio-only content.
Users who have difficulty with hearing and/or vision may need assistance with audio-only or video-only content, such as an audio file, embedded podcast or silent film.
As the popularity of podcasting continues to grow, making these accessible is an important part of a presenters job –  in conjunction with

1.2.1 – Audio-only and Video-only (Pre-recorded) (Level A)Read more

Provide text alternatives for non-text content that serves the same purpose.
Users who cannot see images, hear audio or perceive video benefit from having text alternatives in their place. These can be read by the user or voiced by assistive technology.

Text alternatives must therefore provide the same information as the non-text content.
How to Pass Non-text Content

1.1.1 – Non-text Content (Level A)Read more