Drupal is committed to web accessibility, conforming to WCAG 2.0 and ATAG 2.0 guidelines, and has an accessibility team to identify and resolve barriers. Key features in Drupal 8 include improved semantic HTML, aural alerts, controlled tab order, inline form error identification, and automatic alt text generation. Various accessibility modules enhance user experience, enabling customizable options such as high contrast themes and text resizing to accommodate diverse user needs.