Illustration showing a laptop screen displaying the word ‘Accessibility,’ with five icons above it representing different types of disabilities: a hand (physical), an ear (hearing), an eye (vision), a speaker (audio/speech), and a brain (cognitive disabilities).
Web accessibility is about ensuring that digital content, websites, and online tools are usable by everyone—including people with visual, auditory, cognitive, physical, and neurological disabilities. (Gevorkian, 2020)
Why it matters:
Legal Compliance:
Accessibility isn’t just good practice—it’s the law. Organizations that receive federal funding or serve the public are legally required to meet standards like Section 504, Section 508, and WCAG 2.1. Noncompliance can result in lawsuits, loss of funding, or public scrutiny.
Equity and Inclusion:
Accessible design removes barriers that prevent people with disabilities from fully participating in digital spaces. When content is accessible, users can engage with it regardless of how they access the web—whether using a keyboard, screen reader, magnification tool, or alternative input device.
Wider Reach & Better Usability:
Accessibility improves the experience for everyone—not just users with disabilities. Clear navigation, transcripts, good contrast, and mobile-friendly layouts also benefit:
People using mobile devices
Users with slower internet connections
Older adults
Non-native English speakers
Inclusive Learning and Communication:
In education and training, accessibility is essential. It ensures all learners, including those with IEPs, 504 plans, or undiagnosed challenges, can access content in ways that work for them. For example, captions help not just deaf users, but also learners in noisy or quiet environments.
Ethical and Professional Responsibility:
Building accessible digital content reflects a commitment to diversity, equity, and human dignity. It aligns with modern values in education, business, and tech development.
Overview of Accessibility Standards:
WCAG 2.1 Level AA (emphasis): A globally recognized set of guidelines for making web content accessible.
POUR Principles:
Perceivable: Content must be presentable to users in ways they can perceive (e.g., alt text, captions).
Operable: Users must be able to interact with interface components (e.g., keyboard navigation).
Understandable: Information and operations must be clear (e.g., predictable menus, readable language).
Robust: Content must be compatible with current and future assistive technologies.
Detailed Explanation of WCAG 2.1 Level AA: Organized by POUR principle, some key success criteria include:
Perceivable:
Provide text alternatives for non-text content (SC 1.1.1).
Provide captions for live audio (SC 1.2.4).
Operable:
Ensure all functionality is available via keyboard (SC 2.1.1).
Provide users enough time to read and use content (SC 2.2.1).
Understandable:
Use readable language (SC 3.1.1).
Help users avoid and correct mistakes (SC 3.3.1).
Robust:
Maximize compatibility with assistive technology (SC 4.1.2).
International Standards: Canada’s AODA, the European EN 301 549, and Australia’s DDA align with WCAG.
Future of Accessibility: WCAG 2.2 (in progress) and WCAG 3.0 (early stages) are expanding criteria for cognitive disabilities and emerging tech.
Video above is overviewing web accessibility.