Layout and Design
Generally, the layout of a page should be simple, clean, and uncluttered. Navigation should be clear and consistent from page to page.
When adding content, keep content organized and chunked together in short paragraphs so users can scan your content easily.
Headings should always include descriptive section headings. Section headings allow for a quick scan of the content for sighted and non-sighted users.
In Canvas, page titles are automatically generated at H1.
Alternative (alt) text is required to provide a textual alternative to non-text content in web pages. This text will be read aloud to a person using a screen reader.
By default, Canvas includes the image name as the alt text, which should be changed to something more descriptive when embedding images. Alt text is not the same as the image title, which generates text when users hover over the image. Learn how to embed images in the Rich Content Editor.
When adding a link, instead of pasting in the URL directly, attach the link to words that describe the link destination. This behavior will help everyone (whether they are screen reader users or not) understand where the link will take them.
- Bad Example
"Donald Tapscott, in his paper ''Growing Up Digital," http://www.ncsu.edu/meridian/jan98/feat_6/digital.html says these students..."
- Good Example
"Donald Tapscott, in his paper ''Growing Up Digital," says these students..."
Users can view text contrast well when formatting with bold and italics, which help distinguish between important content items.
Example Canvas Color Ratios
Fail: (under 4.5)
- Yellow Text: 1.07:1
- Pale Green: Text 1.12:1
- Orange Text: 2.14:1
- Pink Text: 3.14:1
- Red Text: 4:1
Good: (4.5 to 7)
- Blue Text: 4.68:1
- Dark Green: 5.14:1
- Purple Text: 6.95:1
Best: (Over 7)
- Burnt Orange: 7.43:1
- Very Dark Gray: 12.63:1
- Black text: 21:1
In Canvas, headings for table columns and rows can be changed in the Rich Content Editor. View the Creating Accessible Tables in the Rich Content Editor.
Example Table HTML Code:
<th scope="col">Percentage of Total</th>
<th scope="row">Website URL</th>
Videos should always have the option to view captions.
- For external videos, check with the video provider for caption availability. Learn how to Caption YouTube Videos owned by you.
- For videos created or uploaded into Canvas, Canvas uses a tool called Amara to sync your script with a video. Learn how to create captions for new or uploaded Canvas videos.
Content File Formats
General accessibility guidelines apply to designing a Word document.
General accessibility guidelines apply when designing a PowerPoint document. Use the built-in accessibility checker: [File > info > check for issues > check for accessibility].
- Additional guidelines and links:
- Use slide layout templates whenever possible.
- When you can’t use a template, use one with the slide title only.
- Write presenter’s notes in the provided area.
- Apply ALT text to images.
- Add captions to the slide or presenter’s notes for complicated images (e.g. diagrams or maps).
- If embedding video, caption the video and ensure the player controls are accessible.
- If embedding audio, include a transcript.
Portable Document Format (PDF)
Portable Document Format (PDFs) should be created as accessible documents. Most commonly, PDFs are created from Word documents. If you do not have the original source file for a PDF document, you can tag the PDF to help with accessibility.
- Additional guidelines and links:
Significant contributions to this guide were made by:
- John Raible: Instructional Designer for the Center for Distributed Learning at the University of Central Florida
- Nancy Swenson: Instructional Designer for the Center for Distributed Learning at the University of Central Florida