Written by Martina Đođo, June 2025
The web should work for everyone, across different hardware, software, languages, locations, and abilities. Building accessible digital products extends market reach, improves the user experience, strengthens brand perception, and fulfils regulatory obligations. None of that is optional anymore.
Why digital accessibility matters
Accessibility is a measure of product quality: the degree to which people with disabilities can use a system effectively. But it goes beyond accommodating disability. It also covers temporary limitations such as poor signal, bright sun on a screen, or using a phone one-handed in a busy moment.
- •Digital products are now essential to taking part in education, employment, culture, politics, and sports.
- •The European Accessibility Act takes effect in June 2025 across EU member states, with Norway, Iceland, and Liechtenstein following.
- •Exclusionary design shuts out potential customers, and older adults who develop disabilities expect to keep using the same systems.
- •Accessible content is easier for search engines to index, and it ranks better.
- •Accessible websites demonstrate innovation, responsibility, and customer-centric values.
How to start: follow accessibility guidelines
The Web Content Accessibility Guidelines (WCAG) from the W3C provide the framework. They're organised around four principles, known as POUR:
Perceivable
Users can perceive the information: alt text for images, audio alternatives for video, sufficient contrast, captions and transcripts.
Operable
Users can navigate sites and apps: full keyboard navigation, accessible forms, enough time to complete tasks.
Understandable
Content is easy to follow: clear instructions, simplified language, predictable behaviour, helpful error messages.
Robust
Content works with current and future assistive technologies: clean semantic markup that works with screen readers and other tools.
EU law mandates WCAG Level A and Level AA compliance for websites and mobile applications.
Design considerations
Colour & contrast
4.5:1 contrast minimum; never convey meaning through colour alone.
Typography
Minimum 16px body text; 1.5× line-height for comfortable reading.
Navigation
Logical layout, clear hierarchy, visible focus states.
Forms
Clear labels (not placeholders); specific, actionable error messages.
Interactive elements
44×44px minimum target size; full keyboard accessibility.
Multimedia
Captions and transcripts; disable auto-playing animations.
Frontend accessibility implementation
- •Semantic HTML & ARIA: Use proper HTML elements; apply ARIA only when semantic HTML is insufficient.
- •Keyboard navigation: Every interactive element reachable with Tab, Enter, and Space, in a logical focus order.
- •Form handling: Associate labels using for/id attributes; use aria-live regions for validation messages.
- •Media alternatives: Alt attributes for images; captions and transcripts for video; aria-hidden="true" for decorative elements.
- •Responsive design: Relative units (em, rem, %); adaptable layouts across devices.
Mobile development accessibility
- •Native APIs: TalkBack (Android), VoiceOver (iOS).
- •Descriptive labels: contentDescription / accessibilityLabel.
- •Touch targets: 44×44dp (iOS) or 48×48dp (Android).
- •Screen reader optimisation with meaningful descriptions.
- •Live region updates for dynamic content.
- •High-contrast and dark mode support.
In closing
Accessible design creates inclusive experiences that benefit all users. Thoughtful UI/UX, clear navigation, readable content, and assistive-technology compatibility add up to products that meet legal requirements while expanding the market they can reach. It's good engineering, good design, and good business, usually all at once.
