Your Digital Signature Speaks, So Make It Awesome and Accessible!

Your email signature is often the last thing people see in your message — but it makes a lasting impression. An accessible, well-structured signature helps all recipients, including those using screen readers or other assistive technologies, understand who you are and how to reach you.

Why Does an Accessible Signature Matter?

Email signatures that rely heavily on images, complex layouts, or non-standard fonts can be difficult or impossible to read for people using assistive technologies. An accessible signature ensures that:

• Screen readers can correctly convey your contact information;
• Users with low vision or colour blindness can distinguish your text and links;
• Your signature displays consistently across different email clients and devices.

Best Practices for an Accessible Email Signature

1. Use Plain Text as the Foundation: Build your signature primarily in plain text. Avoid relying on images to convey key information such as your name, title, or contact details. If an image (such as a logo or banner) is blocked or not displayed, your essential information will still be visible.
2. Choose Accessible Fonts: Use sans-serif fonts such as Arial, Calibri, or Aptos in size 10 pt or larger. Avoid decorative or script fonts that may be difficult to read. Do not use colour alone to convey meaning.
3. Ensure Sufficient Colour Contrast: Your signature text must have a contrast ratio of at least 4.5:1 against its background to meet the Web Content Accessibility Guidelines (WCAG) 2.1 Level AA standard. Use the Colour Contrast Analyser to verify your colour choices.
4. Add Alternative Text for Images: If you include a logo or image in your signature, provide meaningful alternative text (alt text) that describes the image. If the image is purely decorative, set the alt text to empty so screen readers skip it.
5. Make Links Descriptive: Avoid generic link text such as "click here" or "learn more." Instead, use descriptive text that tells the recipient where the link goes, such as "Visit the IT Accessibility Office website."
6. Keep It Simple and Concise: A clean, minimal signature is easier to read and less likely to cause accessibility issues. Include only essential information:
   • Full name;
   • Job title;
   • Organization and branch;
   • Phone number(s);
   • Email address;
   • Government of Canada / Canada.ca website link (if applicable).
7. Support Both Official Languages: For bilingual positions, provide your signature in both English and French. If you are in Quebec, start with French; otherwise, start with English. Refer to ITAO's article on bilingual email accessibility for guidance on proofing language settings.

What to Avoid

• Avoid animated GIFs or moving images — they can be distracting and inaccessible;
• Avoid using tables for layout purposes, as they can confuse screen readers;
• Avoid excessive promotional banners that add visual clutter without useful information;
• Avoid social media icons without text labels — always pair icons with descriptive text or alt text.

Helpful Resources

• Refer to ITAO's best practices for signature blocks for additional guidance and templates.
• Learn more about accessibility in your everyday emails.
• Learn how to give non-text content a voice using alternative text.

If you need assistance or have any questions, please do not hesitate to reach out to us through our request management tool or by contacting us directly at EDSC.TI-IT.A11Y.ESDC@hrsdc-rhdcc.gc.ca.