Accessible web design: How to make your website legally compliant

Starting in 2025, web accessibility will be a legal requirement for websites, online stores, and digital applications that offer products or services. But how do you efficiently implement accessible web design?

01.10.2024 8 min reading time
Von: Hendrik Hohenstein UI Designer Stephanie Wölke Lead UX Design

Content

  1. In a nutshell
  2. What does accessible web design mean?
  3. What requirements do you have to meet?
  4. How to make your website accessible
  5. Online tools for automated checks
  6. Key accessibility checklists (A11y)
  7. Important questions and answers

In a nutshell: Accessible web design

  • Ensures equal access to all content
  • Accessibility will be a legal requirement starting June 28, 2025
  • Core requirements are based on WCAG Level AA / BITV 2.0
  • Checks with accessibility tools alone are not enough
  • From audit to certification, we guide our clients through the process

An opportunity for inclusion – and economic success

Did you know that over 15% of the world's population lives with some form of disability? Many of these individuals face barriers online that prevent access to key services and information. After June 28, 2025, inaccessible websites won’t just risk fines – you could also lose out on millions of potential customers. But it’s not just about legal compliance; it’s about ensuring your digital presence is accessible to everyone, thus contributing to a more inclusive society.

Accessible web design offers an opportunity to demonstrate responsibility, enhance your brand’s reputation, and tap into new markets. In this article, we’ll cover what you need to know to get started.

What is accessible web design?

Accessible web design means creating websites and digital applications that are usable by everyone, regardless of limitations such as neurodivergence or visual impairments. The goal of accessible web design is to provide digital content and functions without barriers so that all users have equal access to information and services.

Why accessibility benefits your business

Extended user group
Accessible design doesn’t just serve people with permanent disabilities; it also helps temporarily limited users, which broadens your reach.

Increased user-friendliness
Customers will navigate your site more quickly and efficiently, regardless of their abilities. This leads to higher satisfaction and loyalty.

Positive brand image
An accessible web design shows your commitment to social responsibility and inclusion, which in turn strengthens your brand’s reputation.

Legal compliance
Starting in 2025, web accessibility will be mandatory. Get compliant now to future-proof your business and promote inclusion.

What requirements must your website meet?

Accessibility is a human right – also on the web. By 2025, companies will be legally required to ensure accessible design. The international WCAG guidelines (Web Content Accessibility Guidelines) set forth by the W3C (World Wide Web Consortium) outline four core principles that your company website must meet:

1. Perceptible
Information must be perceivable by all users. Graphic elements, videos, and illustrations should be described with meaningful alt text.

2. Operable
The website must be operable for user groups relying on assistive technology, ensuring all functionalities are controllable via keyboard.

3. Understandable
Information and interactions should be intuitive and predictable, avoiding any unexpected events.

4. Robust
The website must work seamlessly across all devices and assistive technologies and adhere to the latest standards.

The four principles are divided into 13 guidelines, which are further broken down into 78 success criteria. Compliance with legal requirements is evaluated based on these criteria and classified into three levels of conformity: A (minimum), AA, and AAA (maximum). Starting June 28, 2025, websites and digital applications offering products or services must meet Level AA standards. Interestingly, the BITV 2.0 guidelines applicable in Germany align with WCAG Level AA, so there’s no need for separate consideration.

Principles, guidelines and success criteria, divided into three levels of conformity

WCAG conformance levels for accessible web design

The three conformance levels apply to every aspect of building an accessible website. Below, we explain these classifications using example criteria for integrating video and audio.

Simple A – This is the minimum level of accessibility, based on WCAG standards.

Subtitles or a transcript must be provided. Video and audio files, as well as animations and automatic sliders with movements over five seconds, must be controllable via a pause button.

Double A – This level addresses the most common accessibility issues.

In addition to the criteria for Level A, it must be ensured that the contrast of body text and images to the background should be at least 4.5 to 1. This applies, for example, to introductory texts on the website and subtitles within the video itself.

Triple A – This is the highest standard of accessibility.

Along with Level A and AA requirements, sign language must be integrated into videos. Easy-to-read versions of the content must also be made available.

So how can you make your website accessible?

Accessibility is a team effort. When we build new pages, we integrate accessibility right from the start and collaborate with our clients throughout the process.

Making existing websites accessible

For existing sites, we recommend the following steps to ensure accessibility:

01 Cross-device accessibility audit

We conduct both automated and manual tests to identify areas for improvement.

02 Action plan & recommendations

Based on the audit, we create a tailored plan with specific recommendations.

03 Implementation of the optimizations

After we have successively implemented the measures, we recommend a certification of accessibility.

04 Testing

External testing with real users, especially at Level AAA, ensures your website meets all standards.

When you work with us, you can trust that your website will meet all the necessary accessibility standards. If you’d like to explore specific measures further, we’ve compiled best practices below that you should keep in mind to enhance your website's accessibility.

Designing accessible design and code?

We will be happy to help you. Just send us a short message!

Accessible websites: Best Practices

To design an accessible website, here are a few key areas to focus on:

  • Colors & contrasts: Use sufficient color contrasts and a color palette that is easily recognizable for people with visual impairments or color blindness.
  • Defined states: Make sure that all clickable elements (such as buttons) are visually highlighted when they are selected with the keyboard (consistent focus frame). This makes it easy for users to see which element is currently active when they use the keyboard to control it.
  • Usability: All clickable elements should be recognizable as clickable and have a sufficiently large click area for easy access.
  • Audio & video content: Provide subtitles or transcripts for users with hearing impairments, and ensure media can be paused via a designated button.
  • Responsive design: Content and elements should adjust automatically to different screen sizes, orientations, and resolution.
Responsive design dynamically adapts websites for mobile, tablet and desktop.
  • Images: Use high-quality images without embedded text, as screen readers and other assistive technologies can’t interpret them.
  • Fonts: Choose legible fonts that work well at all sizes.
  • Semantic structure & hierarchy: Clear structures and well-organized layouts with headings and lists make it easier for users to absorb information and improve the interpretation of screen readers. This also has a positive effect on Google rankings.
  • Predictability: Place elements where users expect them, and use consistent design patterns.
  • UX writing: Craft clear, easy-to-understand alt texts and link labels for images, graphics, and diagrams. This makes the most important information accessible to everyone.
  • Screen reader: Use correct ARIA labels so that text-to-speech software can interpret content accurately and decorative elements are hidden.
  • Markup: Provide all content types with correct semantic HTML elements so that assistive technologies can correctly interpret the structure and meaning of content.
  • Keyboard navigation: All functions and elements should be selectable and controllable via keyboard to enable access for people with limited motor skills or situational limitations.
  • Loading time: Pages should load quickly and be as lightweight as possible to ensure smooth use, even with a slow internet connection, while also conserving data usage.

Accessibility tools: Testing your website

Numerous online tools are available to check individual elements or entire websites for accessibility. At Moccu, we utilize WAVE for initial audits to generate automated reports. While these provide a preliminary overview of a website's accessibility status, they must be supplemented with manual tests.

Quick Guide for WAVE

Need help testing your website with WAVE? Check out our quick guide here:

A comprehensive tool for enhancing website quality is Google Lighthouse, accessible via Chrome Developer Tools. Lighthouse rates accessibility alongside overall performance and SEO.

For direct page and element testing during design, we use Figma plugins, with Stark being a favorite for checking font styles, touch target sizes, and color contrasts. Additionally, Stark features a simulator for mimicking conditions such as color blindness.

There are various providers and systems for testing the screen reader suitability of structure and texts. For iOS, for example, we use VoiceOver.

Accessible website: Checklist

There are a large number of accessibility checklists online where the guidelines of the most important accessibility catalogs are summarized in one list. Good examples of this include The A11Y Project, Webflow, and The Checklist Voxmedia.

At Moccu, we have developed a unique checklist for each specialist area to guide our experts in ensuring all relevant aspects are addressed when designing accessible websites or digital applications.

Important questions and answers

Now you have a good overview of what accessible web design looks like and how it can be implemented. We’re here to help you achieve accessibility for your website or digital application while ensuring legal compliance.

Let's break down barriers together – get in touch!

Stephanie Wölke UX Design Lead

Your message has been sent

Thank you for your message! We will get in touch with you as quickly as possible!

Our team of experts

Hendrik Hohenstein UI Designer

Hendrik Hohenstein has been a Senior User Interface Designer at Moccu since February 2021. Driven by a passion for user-centered solutions, complex design systems, and meaningful visuals, he develops UI solutions that enhance usability and strengthen our clients’ brand presence.

LinkedIn

All articles by Hendrik Hohenstein
Stephanie Wölke Lead UX Design

Since December 2015, Stephanie Wölke has been the UX Design Lead at Moccu. She expertly leads UX design projects, focusing on creating user-centred, usable, and inclusive digital solutions that deliver outstanding results. With her expertise and ♥️ for testing, she formulates innovative UX strategies that significantly enhance UX and strengthen clients' brand identities and goals.

LinkedIn

All articles by Stephanie Wölke

More insights from our blog

Back to Insights Back to Top