How can you make your website inclusive with ac­ces­si­ble web design?

Ac­ces­si­ble web design brings together good design, social re­spon­si­bil­i­ty and legal com­pli­ance. It shows how websites need to be built to meet legal standards while making sure that everyone, re­gard­less of ability, can use them without barriers.

What is ac­ces­si­ble web design?

Ac­ces­si­ble web design means creating websites that everyone can use, re­gard­less of their physical, cognitive, or technical lim­i­ta­tions. This includes making content available to people who are blind or visually impaired (for example, with the help of screen readers as well as those with motor dis­abil­i­ties or learning dif­fi­cul­ties. Even people with temporary im­pair­ments or those who are in chal­leng­ing en­vi­ron­ments benefit. It’s not just about tech­nol­o­gy. It’s also about design and layout. Ac­ces­si­bil­i­ty is a key part of inclusive digital com­mu­ni­ca­tion.

Why is ac­ces­si­ble design important?

Starting in June 2025, the EU Ac­ces­si­bil­i­ty Act will require many digital products and services — including websites, apps, e-books, and online stores — to meet specific ac­ces­si­bil­i­ty standards. The goal is to ensure that everyone, including people with dis­abil­i­ties, can use digital services without barriers. Each EU country is adapting the directive into national law. In Germany, for example, through the Ac­ces­si­bil­i­ty Strength­en­ing Act (BFSG).

Important for U.S. companies: If your business offers digital services to customers in the EU — or plans to — these rules apply to you, too. That means ac­ces­si­bil­i­ty isn’t just a European concern. It’s a global standard for reaching users and staying compliant.

The Web Content Ac­ces­si­bil­i­ty Guide­lines (WCAG) serve as the main reference standard for com­pli­ance under these laws. They define how to make websites more ac­ces­si­ble in terms of design, structure, and func­tion­al­i­ty.

Beyond legal oblig­a­tions, ac­ces­si­ble websites offer numerous benefits: they expand audience reach, enhance brand rep­u­ta­tion, and improve the overall user ex­pe­ri­ence. Ac­ces­si­bil­i­ty also has a positive impact on search engine op­ti­miza­tion (SEO) and site per­for­mance.

What are the eight key prin­ci­ples of ac­ces­si­ble web design?

The Web Content Ac­ces­si­bil­i­ty Guide­lines (WCAG 2.1) consist of 13 guide­lines that are based on four fun­da­men­tal prin­ci­ples: per­ceiv­abil­i­ty, op­er­abil­i­ty, un­der­stand­abil­i­ty, and ro­bust­ness. When applying these prin­ci­ples to web design, several key design con­sid­er­a­tions are par­tic­u­lar­ly important:

Checklist: Design-oriented WCAG guide­lines at a glance

Tips for designers

Ac­ces­si­ble web design starts with visual and struc­tur­al planning. A flexible, re­spon­sive layout is not only a web design trend — It’s essential for making sure content displays correctly and works smoothly across different devices.

When it comes to color schemes, color should never be the only way to convey meaning. Status in­di­ca­tors, warning messages, and buttons should always be supported with icons or text, so users with visual im­pair­ments can navigate clearly and con­fi­dent­ly.

In­ter­ac­tive elements like buttons, links, and check­box­es need to be large enough and easy to recognize. The WCAG recommend a minimum size of 44 × 44 pixels, es­pe­cial­ly to help users with motor im­pair­ments on touch devices.

Ty­pog­ra­phy also plays a key role. A clear visual hierarchy, using font sizes, sub­head­ings, and emphasis, helps users find their way around. Sans-serif fonts tend to be easier to read, and suf­fi­cient line spacing (at least 1.5x) improves overall read­abil­i­ty.

Tools for testing ac­ces­si­ble web design

There are many tools available to help you check the ac­ces­si­bil­i­ty of your digital content. WAVE (Web Ac­ces­si­bil­i­ty Eval­u­a­tion Tool) and Ac­ces­si­bil­i­ty Insights are popular browser plugins that let you identify barriers directly in the frontend. For manual checks like color contrast analysis, tools such as Contrast Checker are useful. Screen readers are also essential for testing how real users ex­pe­ri­ence your site. Keep in mind that automated tools can only catch a portion of ac­ces­si­bil­i­ty issues. A thorough manual review is essential to ensure full com­pli­ance.

What are some best practices and common mistakes?

Ac­ces­si­ble web design depends on thought­ful planning, technical precision, and a com­mit­ment to in­te­grat­ing ac­ces­si­bil­i­ty through­out the design and de­vel­op­ment process. This approach is es­pe­cial­ly ben­e­fi­cial for small and medium-sized busi­ness­es (SMBs). Taking ac­ces­si­bil­i­ty into account from the beginning is far more effective as making changes later can be more com­pli­cat­ed and expensive.

Best practices for ac­ces­si­ble web design

• Opt for reusable design com­po­nents: Elements like buttons, forms, and nav­i­ga­tion bars should be designed with ac­ces­si­bil­i­ty in mind from the very beginning. This ensures con­sis­ten­cy and reduces main­te­nance.
• Use clear, simple language: Content should be easy to un­der­stand and concise, avoiding un­nec­es­sary com­plex­i­ty.
• Aim for strong contrasts: Text and back­ground colors should have a contrast ratio of at least 4.5:1 for regular text and 3:1 for large text.
• Ensure keyboard ac­ces­si­bil­i­ty: All in­ter­ac­tive elements should be operable by keyboard. Visible focus in­di­ca­tors are a must.
• Use alt texts con­sis­tent­ly: All images, graphics, and icons should include de­scrip­tive alt texts for screen reader com­pat­i­bil­i­ty.
• Use an ac­ces­si­ble CMS: Many ac­ces­si­ble content man­age­ment systems like Plone, Contao, or papaya CMS offer built-in ac­ces­si­bil­i­ty features.

Common pitfalls to avoid

• Generic alt texts: Including alt texts such as “image123.jpg”, which don’t help users un­der­stand what an image is about or why it’s there.
• Poor contrast or color choices: Using colors that are hard to dis­tin­guish for people with color vision de­fi­cien­cies, without providing any ad­di­tion­al visual cues or markers.
• In­ac­ces­si­ble forms: Missing <label> tags, unclear error messages, and no visible focus in­di­ca­tors can make forms more difficult to complete.
• Un­struc­tured content: Headings not being used properly or lists being written as plain para­graphs.
• Complex nav­i­ga­tion without aids: Creating pages without “Skip to Content” links or clearly iden­ti­fi­able nav­i­ga­tion paths makes it hard for users to find their way around.
• Automatic content without user control: Videos, an­i­ma­tions, or sliders that start au­to­mat­i­cal­ly and can’t be paused, stopped, or turned off are both dis­rup­tive and in­ac­ces­si­ble to many users.

Con­clu­sion

Ac­ces­si­ble web design is essential for digital inclusion. From 2025 onwards it’s also a legal oblig­a­tion for many providers, including U.S. companies, doing business or targeting the EU. Busi­ness­es that pri­or­i­tize ac­ces­si­bil­i­ty from the beginning not only stay compliant with the law but also gain a com­pet­i­tive edge. The WCAG offer clear guide­lines, and a wide range of tools can support im­ple­men­ta­tion. For SMBs and agencies alike, it makes sense to build ac­ces­si­bil­i­ty into the design and de­vel­op­ment process from the very beginning.