Web accessibility a.k.a a11y refers to the universal ability of different users and devices to access the content and features of a website, regardless of physical or cognitive ability.
In other words, web accessibility ensures that everyone can successfully use a website, including users who are blind, color blind; deaf or hard of hearing, as well as users who have difficulty using their hands or have other disabilities.
We want to adhere to the W3C’s Web Content Accessibility Guidelines (WCAG) 2.1
You can find a comprehensive checklist in Coolblue design system guidelines (internal).
Accessibility is considered to be part of your teams definition of done.