A Practical Guide to Inclusive Design

I used to think inclusive design was about adding accessibility features after you’d built the core product. Screen reader support, keyboard navigation, colour contrast fixes. The checklist you work through before launch if you have time.

Inclusive design isn’t about accommodating edge cases. It’s about recognising that the “average user” you’re designing for doesn’t exist, and building products that work for the widest range of people from the start. Not because it’s charitable, but because it makes your product better for everyone.

The kicker? Most inclusive design decisions like clearer language, simpler flows, flexible interactions improve usability for all users, not just those with specific needs. When you design inclusively, you’re not making tradeoffs; you’re making better products.

Scaling What Works

Growth considerations

Early on, when you’re validating product-market fit, inclusive design can feel like a luxury. You’re moving fast, breaking things, just trying to prove the core idea works. Stopping to consider diverse user needs feels premature.

But here’s what I’ve learned: building exclusively for a narrow user type early means rebuilding later when you need to expand. That’s far more expensive than designing inclusively from the start.

You don’t need to solve every inclusive design challenge on day one. But you do need to avoid designing yourself into corners that require major refactoring later. Clear language scales better than jargon. Simple flows scale better than complex ones. Keyboard-accessible interactions scale better than mouse-dependent ones.

Maintaining quality

As you scale, maintaining inclusive design quality gets harder. More designers, more engineers, more features, more edge cases. Without deliberate systems, you’ll ship increasingly exclusive designs without realising it.

At one company, we’d made good inclusive design decisions early. But when we grew, shipped more frequently, within six months we’d regressed. New features required precise mouse movements. Error messages became cryptic. Colour became the only way to distinguish states. We’d lost the inclusive design quality that made the early product accessible.

The fix wasn’t more process or checklists. It was building inclusive design into your design system and review processes:

Design system components built with accessibility defaults. Our button component supported keyboard navigation, proper focus states, and screen reader labels out of the box. Designers and engineers couldn’t easily build inaccessible buttons even if they tried.

Automated testing for basic accessibility violations. We ran axe-core as part of CI/CD. Not perfect, but it caught obvious issues like missing alt text, poor contrast, improper heading hierarchy—before they reached users.

Diverse user testing in every major feature development. Not occasionally, routinely. Have a panel of users with various accessibility needs who’d test new features before launch. This caught problems automation missed, like confusing language or workflows that worked for typical users but broke for others.

The key is making inclusive design the default path, not something you had to remember to do. When the system makes it easy to build inclusively and hard to build exclusively, quality maintains itself.

The Development Context

Technical considerations

Inclusive design has technical implications that need early consideration. Retrofitting accessibility into products built without it is painful and expensive.

The technical foundations that enable inclusive design:

Semantic HTML instead of div-soup. Use proper headings, buttons, forms, and ARIA attributes. Screen readers rely on this structure to navigate. At one company, we’d built everything with divs and onClick handlers. Technically functional for mouse users, completely broken for screen readers. Rebuilding with semantic HTML took three months.

Flexible layouts that work at different zoom levels and screen sizes. Users with vision impairments often zoom to 200-400%. Layouts that break at high zoom are excluding users. Use relative units (rem, em) instead of fixed pixels, and test at 200% zoom minimum.

Separation of concerns between content, presentation, and behaviour. When you hardcode interactions or couple visual presentation with functionality, you make it nearly impossible to support alternative interaction modes. Clean separation makes supporting keyboard, screen readers, and assistive tech straightforward.

Pick frameworks, libraries, and patterns that support inclusive design from the start. If a component doesn’t work with keyboard and screen readers, don’t use it, find one that does or build your own.

Team dynamics

Inclusive design requires different team dynamics than exclusive design. You need diverse perspectives, not just good intentions.

If your entire product team is able-bodied, native speakers with perfect vision and strong technical backgrounds, you can think you are designing inclusively because you read the guidelines and run accessibility checkers.

You most likely aren’t. You may miss problems that would’ve been obvious to users with different abilities. Language that seemed clear to us was confusing to non-technical users. Interactions that felt natural with a mouse were impossible with keyboard. Designs that look good at normal zoom can be unreadable at high zoom.

The fix isn’t just training — it is bringing diverse perspectives into the design process:

Include users with disabilities in research from discovery through testing. Not tokenistic inclusion, genuine partnership.

Diverse design team with people who experience the problems you’re solving for. This is hard, because the tech industry isn’t diverse. But even small improvements matter.

Empathy exercises for the whole team. Every engineer and designer should try using the product with keyboard only, screen reader, high zoom, and colour-blind simulation. Not once in onboarding, regularly.

The cultural shift: from “we’re designing for everyone” to “we’re designing with everyone.” Inclusive design isn’t something you do to your product; it’s about involving diverse users in shaping what you build.

Implementation Approach

Best practices

Start with clear language. The most impactful inclusive design choice is often the simplest: use plain language that anyone can understand.

“Orchestration,” “operationalise,” “leverage synergies.” Seems professional. But you may discover non-native English speakers, people new to the industry, and even experienced users that can find it confusing.

Plain language isn’t “dumbing down.” It’s respecting that cognitive load is real, attention is limited, and clear communication serves everyone better than insider language.

Design for keyboard first. If an interaction works with keyboard, adding mouse support is straightforward. If you design for mouse first, adding keyboard support often requires rework.

Best rule: every interactive element must be keyboard accessible before you review the design. Can you tab through all controls? Does Enter/Space activate buttons? Can you dismiss modals with Escape? If not, it’s not ready for review.

This isn’t about accessibility compliance, it is about forced simplicity. Keyboard-first design prevents complex hover states, nested interactions, and confusing information architecture because those patterns don’t work well with keyboard. The constraint make the designs better.

Provide multiple ways to complete tasks. Different users have different abilities and preferences. When you provide only one way to do something, you’re excluding anyone for whom that way doesn’t work.

Test with real users regularly. Automated tools catch maybe 30% of accessibility issues. The rest require human judgment and lived experience. You need real users with diverse abilities testing your product.

Tooling and process

Build inclusive design into your workflow, not as a separate phase.

Design phase: Use accessibility-first design tools and plugins. Figma plugins that catch contrast issues, label problems, and structure violations during design. Fix them before engineering even starts.

Development phase: Automated testing in CI/CD catches regressions. Not every tool is perfect, but they can prevent obvious mistakes from shipping.

QA phase: Manual accessibility testing checklist. Keyboard navigation, screen reader compatibility, zoom testing, colour blind simulation. This is part of standard QA, not a special accessibility review.

Post-launch: Real user monitoring. Track keyboard-only users, screen reader users, and high-zoom users. When metrics drop for these segments, it flags potential accessibility regressions to investigate.

The pattern: make inclusive design invisible in your process. It’s not a phase or speciality; it’s how you build everything.

Key Takeaways

• Inclusive design benefits everyone: Clear language, simple flows, and flexible interactions improve usability for all users, not just those with accessibility needs. You’re not making tradeoffs; you’re making better products.

• Build foundations early: Semantic HTML, flexible layouts, and keyboard-first design are easier to build from the start than retrofit later. Don’t design yourself into exclusive corners that require expensive refactoring.

• Plain language scales: Jargon and complex language create barriers. Plain English serves everyone better. Native speakers, non-native speakers, people with cognitive disabilities, and anyone reading quickly.

• Keyboard-first as a forcing function: Designing for keyboard first prevents overly complex interactions and forces simpler, clearer patterns that work better for everyone.

• Diverse testing is non-negotiable: Automated tools catch maybe 30% of issues. You need real users with diverse abilities testing regularly to catch problems that automation misses.

• Build it into the system: Make inclusive design the default path through design systems, automated testing, and standard processes. Don’t rely on people remembering to do it.

Final Thoughts

The products I’ve seen with the best inclusive design aren’t the ones where teams spent months perfecting accessibility features at the end. They’re the ones where inclusive thinking shaped early decisions about language, interaction patterns, and information architecture.

You don’t need to solve every inclusive design challenge on day one. But you do need to avoid designing exclusively for one type of user and hoping to expand later. That’s expensive and often requires rebuilding core interactions.

Start with the basics: clear language, keyboard accessibility, proper semantic HTML, and sufficient contrast. These aren’t hard. They’re just different defaults than many teams use. Build them into your process and they become automatic.

This week, try using your product with keyboard only. Don’t touch the mouse. Can you complete core workflows? If not, that’s your starting point. Make it keyboard accessible. That constraint will probably improve your design in ways that benefit all users.

Inclusive design isn’t about checking accessibility boxes. It’s about recognising that your users are diverse and building products that work for them from the start. Do that well, and everyone benefits.

Have questions or thoughts? Get in touch - I’d love to hear from you!