Environment
Web pages
Issue
There is varying information available about the "best" font to use for accessibility.
Resolution
Unfortunately, there is no single "best font type" that will meet everyone's needs. Even individuals with similar types of disabilities may have differing needs and preferences. This is probably why Web Content Accessibility Guidelines (WCAG) does not make specific font recommendations.
A useful strategy is to ensure there is nothing on your page or in your CSS that would prevent users from using browser settings to change their font preferences. You can test your pages by going to the settings in a few standard browsers (in Chrome, go to the three dot menu in the upper right corner and choose Settings > Appearance > Customize fonts), modifying the settings, and then refresh your page to ensure it responds accordingly. If it does not, check your CSS to ensure there is nothing forcing specific fonts.
WCAG also does not make font size recommendations, but 12 pt. is generally recommended as a minimum size. You will also want to ensure compliance with WCAG Success Criterion 1.4.4, which ensures that text reflows appropriately when viewed on different types of screens and when magnified.
WebAIM has an excellent article on font considerations.
Additional Information
Need additional information or assistance? Contact the ITS Service Center.