I ran axe when viewing an edx.org certificate and it reported several issues including color-contrast violations and missing lang attributes. We will need to fix these issues in order to bring these views into compliance.
VERIFY that axe reports 0 issues when run for all edx.org-issued certificates
Profesional Certificate Program
VERIFY that axe reports 0 issues when run for all open edx templates
VERIFY that chrome accessibility tool also passes for all templates
You can see details about Axe from here https://www.deque.com/products/axe/. You can also install browser extension to view violations.
edx.org axe reported issues:
Color contrast for all certificates
HTML lang on program credentials
May need to update the print style separate from the web style. Maybe not, but check!