WCAG 2.1 AA: The Latest Standards for Achieving Web Accessibility

Web accessibility is a fundamental requirement in today’s digital age. It refers to the ability of people with disabilities, including visual, auditory, physical, and cognitive, to perceive, navigate, and interact with websites and digital products.

Web accessibility standards ensure that everyone can use the web equally regardless of their abilities. Therefore, it is essential to ensure the accessibility of your website by using tools like Accessibility Spark.

The World Wide Web Consortium (W3C) created the Web Content Accessibility Guidelines (WCAG) as a set of technical guidelines for achieving web accessibility. The latest version of these guidelines, WCAG 2.1 AA, introduces new success criteria, supplementing the previous version, WCAG 2.0.

What is WCAG 2.1 AA?

WCAG is a set of guidelines designed to make web content accessible to everyone, including people with disabilities. WCAG 2.1 AA builds upon the previous version, WCAG 2.0, with additional success criteria and techniques for achieving web accessibility.

The “AA” in WCAG 2.1 AA stands for “level AA,” This is the second-highest level of accessibility in the WCAG hierarchy.

Why is WCAG 2.1 AA Important?

Ensuring web accessibility isn’t just a moral and ethical responsibility; it’s also a legal requirement in many countries, such as the US, Canada, and the EU. By complying with WCAG 2.1 AA standards, digital products become accessible to all users, regardless of their abilities. This improves user experience and provides equal access to information.

Understanding the Guidelines

WCAG 2.1 AA guidelines are divided into four principles: perceivable, operable, understandable, and robust. These principles are divided into 13 guidelines, each with multiple success criteria.

1.   Perceivable

Perceivable guidelines ensure that all users can perceive web content, including those with visual and auditory impairments. These guidelines include

  • Text Alternatives: Providing text alternatives to non-text content, such as images and multimedia, enables users who cannot see or hear the content to understand it.
  • Time-Based Media: Providing captions, audio descriptions, and sign language interpretations for multimedia content ensures that users with hearing or vision impairments can understand it.
  • Adaptable: Providing content that can be presented in different ways, including simpler layouts and different fonts, enables users with cognitive and visual impairments to understand the content.

2.   Operable

Operable guidelines include:

  • Keyboard Accessibility: Ensuring that all website functionality is accessible via keyboard navigation enables users with physical impairments to navigate the website effectively.
  • Seizures and Physical Reactions: Ensuring that web content does not cause seizures or physical reactions in users with photosensitive epilepsy or other conditions.
  • Navigable: Providing clear and consistent navigation enables users to understand the website’s structure and find the content they need.

3.   Understandable

Understandable guidelines include:

  • Language and Page Structure: Ensuring the website uses clear and concise language, simple sentences, and consistent page structure enables users with cognitive impairments to understand the content.
  • Input Assistance: Providing clear and concise instructions and labels for forms and controls enables users to input information accurately.
  • Readable and Predictable: Ensuring the website uses readable fonts, appropriate color contrast, and a consistent layout enables users to read and understand the content easily.

4.   Robust

Robust guidelines ensure that various user agents, including assistive technologies, can interpret web content.

  • Compatible: Ensuring that web content is compatible with a wide range of user agents, including assistive technologies and mobile devices, enables users to access the content on any device.
  • Assistive Technology Compatibility: Ensuring that web content works with various assistive technologies, including screen readers and magnifiers, enables users with disabilities to access the content.
  • Programmatically Determined: Ensuring that the website provides clear and concise information about the content, such as the language used, enables assistive technologies to interpret the content accurately.

WCAG 2.1 AA and SEO

WCAG 2.1 AA compliance can significantly impact a website’s SEO performance. Accessibility improvements, such as clear and concise content, fast loading times, and mobile compatibility, can improve the user experience, increase engagement, and boost search engine rankings.

Achieving WCAG 2.1 AA compliance involves making your website structure, content, and design accessible to users with disabilities. This includes providing alternative text for images, ensuring that videos have captions and transcripts, and providing keyboard navigation for users who cannot use a mouse.

How to Achieve WCAG 2.1 AA Compliance

To achieve compliance, you can follow the WCAG 2.1 AA success criteria, organized into three levels: A, AA, and AAA. The AA conformance level is recommended for most websites and web applications.

Common WCAG 2.1 AA Compliance Challenges

One of the biggest challenges in achieving WCAG 2.1 AA compliance is designing and developing websites accessible to users with different types of disabilities. Some of the most common challenges include:

  • Accessibility for Users with Vision Impairments: This can include users who are blind or have low vision. To make your website accessible to these users, you must provide alternative text for images. Moreover, check that text is readable and provides a high-contrast mode.
  • Accessibility for Users with Hearing Impairments: This can include users who are deaf or hard of hearing. To make your website accessible to these users, you need to provide captions and transcripts for videos and audio content.
  • Accessibility for Users with Motor Impairments: This can include users who have difficulty using a mouse or keyboard. To make your website accessible to these users, you need to provide keyboard navigation. You must also ensure that links and buttons are easy to click and minimize the need for scrolling and clicking.

WCAG 2.1 AA Testing and Validation

To ensure that your website meets WCAG 2.1 AA standards, you can use various testing methods and validation tools. Some of the most common testing methods include manual, automated, and user testing. Validation tools, such as WAVE and the Accessibility Checker, can help you identify accessibility issues on your website and provide recommendations for how to fix them.

Final Thoughts

Implementing WCAG 2.1 AA standards is crucial for creating an inclusive and accessible web environment. By making your website accessible, you ensure everyone can access your content, regardless of their abilities. It’s ethical and beneficial for your business, as it enhances user experience, increases engagement, and boosts SEO. Let’s work together to create a web that’s accessible to all.