How can teams prevent inaccessible components reaching production?

Prevent inaccessible components by involving developers during design, considering accessibility in component choices, and keeping human judgement in the delivery process. Native browser elements, sufficient contrast and support for different input methods reduce avoidable barriers before implementation decisions become difficult to change.

Digital illustration on a dark background showing a winding white path extending downward from a browser window with a photo of purple coral, surrounded by purple UI wireframes and interface icons.

Bring designers and developers together from the start

Accessibility decisions should be made before designs are treated as fixed. Developers can help designers assess what is practical to implement, identify technical constraints and suggest approaches that work across devices and input methods. This includes choices that may appear small, such as text contrast, as well as the behaviour of interactions for mouse, touch and keyboard users.

The collaboration should continue after design approval. Designers need visibility of implementation so they can confirm that the intended experience has been carried through, while developers can explain how technical choices affect usability. Treating inclusion as a late checklist creates pressure when deadlines are already tight. A shared process makes accessibility part of design, development and execution rather than a retrofit.

Sources: Designing and developing web experiences for everyone, No creator is an island

Use automation as a baseline, not a replacement for people

AI can help teams automate repetitive accessibility work, including supporting accessible coding patterns and generating more meaningful image descriptions from page context. That can free designers and developers to focus on the decisions that require judgement about how people actually experience a journey.

However, AI is probabilistic. It can misunderstand images, cultural context and the needs of individual users, and it can reproduce biases present in its training data. Accessibility overlays present a similar risk: a widget or toolbar may address a limited set of failures without correcting the underlying structure of a site. Keep human designers, developers and accessibility advocates involved so that automated output is reviewed in context and inclusion is built into the experience itself.

Sources: The Prompt: Using AI to Create a More Accessible and Dynamic Digital Future

Make accessible component choices before customisation

A component can look polished while still creating barriers for people who navigate with a keyboard, use screen readers or access a site on different devices and connections. Native browser elements provide useful accessibility support by default. For example, a native dropdown can be accessed with a keyboard.

Custom components require more care because styling and interaction changes can remove or weaken that built-in support. Before a custom control is approved, teams should consider whether it can be operated with a keyboard and recognised by screen readers, as well as whether its contrast and behaviour work in varied conditions. Accessibility is not limited to visual impairment or a single device. An inclusive web experience accounts for different access needs, contexts and ways of interacting with content.

Sources: Designing and developing web experiences for everyone

Stats

WebAIM detected 50,960,288 distinct accessibility errors across one million home pages in its 2025 analysis, an average of 51 errors per page.

WebAIM

FAQs

Can AI accessibility tools replace human review?

No. AI can automate repetitive work, but it can misinterpret images, cultural context and user needs. Human designers, developers and accessibility advocates should remain central to reviewing whether an experience works for people.

Why should developers join accessibility design reviews?

Developers can identify technical constraints and accessible implementation options before a design is signed off. Their input can help teams address contrast, input methods and component behaviour before these decisions become harder to change.

What makes a custom web component inaccessible?

A custom component can become inaccessible when it no longer works reliably with a keyboard or cannot be recognised by screen readers. Native browser elements often provide this support by default, so custom controls need careful attention to interaction and assistive technology needs.

Why address accessibility during design?

Addressing accessibility during design helps teams avoid trying to retrofit inclusion when delivery time is limited. Early collaboration allows design and technical decisions to be shaped around the needs of people using different devices and input methods.

How do I prevent inaccessible components reaching production?

Build accessibility into shared design and development decisions before components become fixed.

  1. Involve developers early

    Bring developers into the design process before components are approved. Ask them to identify implementation constraints and accessible alternatives while changes are still straightforward.

  2. Review component behaviour

    Assess contrast, keyboard operation and support for different input methods as part of component design. Prefer native browser elements where they meet the need, and scrutinise custom controls carefully.

  3. Keep human judgement in the loop

    Use AI and automated tools to handle repeatable tasks, then review their output in context. Keep designers, developers and accessibility advocates involved in decisions that affect how people experience the journey.