The Web Content Accessibility Guidelines (WCAG) 2.1 provide the global standard for creating accessible digital experiences, including video content used in websites, e-learning platforms, corporate training, and public communication. WCAG 2.1 outlines specific requirements for captions, audio descriptions, transcripts, keyboard accessibility, visual contrast, adaptable controls, and perceivable information. Organizations that follow WCAG improve accessibility for users with disabilities while reducing compliance risks under ADA, Section 508, and international regulations.
WCAG 2.1 is structured across three conformance levels that reflect the depth of accessibility support: Level A represents the minimum requirements for basic accessibility, Level AAis the industry-standard target and required by many legal frameworks, andLevel AAA provides an enhanced level of accessibility for users with complex needs. Most organizations aim for WCAG 2.1 Level AA to stay aligned with ADA and Section 508 expectations for accessible video.
WCAG 2.1 includes several success criteria specifically focused on video, ensuring content is perceivable, operable, understandable, and robust for users with a wide range of disabilities. Key requirements include:
Captions (1.2.2): Prerecorded video with audio must include accurate, synchronized closed captions. This ensures users who are deaf or hard of hearing can access spoken dialogue and essential sound cues.
Audio Descriptions (1.2.3): Prerecorded video requires audio descriptions that narrate important visual details, such as actions, scene changes, facial expressions, and on-screen text. This supports users who are blind or low vision.
Transcripts: Text-based transcripts provide an alternative for users who prefer reading, use assistive technology, or need searchable content. Transcripts also enhance SEO and accessibility across multilingual audiences.
Live Captions (1.2.4): For live video such as webinars, broadcasts, or virtual events, Level AA compliance requires real-time captioning to ensure inclusivity for users with hearing disabilities.
WCAG 2.1 is essential because it forms the foundation of accessibility laws worldwide. Meeting WCAG criteria ensures your video content aligns with legal standards such as ADA Title II and III, Section 508 for federal agencies, and EN 301 549 in the EU. Beyond compliance, WCAG improves the user experience, increases content clarity, and reduces barriers for individuals with vision, hearing, cognitive, and motor disabilities.
Our accessibility platform automates the creation of captions, transcripts, VTT files, audio description text, and multilingual variants needed for WCAG 2.1 Level A and AA compliance. Using advanced AI, we help organizations reduce manual work, streamline accessibility workflows, and maintain consistent compliance across video libraries, LMS systems, marketing assets, and public digital platforms.
