As web professionals, we build experiences for everyone. Ensuring these experiences are accessible isn't just a compliance checkbox; it's a fundamental principle of inclusive design. While automated accessibility tools are invaluable for catching many common issues, they are not a silver bullet.

This article delves into the essential manual checks that every designer, maker, and developer should integrate into their workflow. By actively engaging with your website from the perspective of diverse users, you can uncover critical usability gaps that automated scanners often miss, ultimately creating a more robust and welcoming web for all.

One of the most crucial manual checks involves ditching your mouse entirely. Many users, including those with motor impairments, temporary injuries, or who simply prefer keyboard shortcuts, rely solely on keyboard navigation. Your website should be fully operable without a pointing device, allowing users to interact with all clickable elements, form fields, and content areas using only the Tab key, Enter, Spacebar, and arrow keys.

Start by tabbing through your entire site, page by page. Ensure that the focus order is logical and intuitive, following the visual flow of the content. Interactive elements like buttons, links, and form controls should receive focus in a predictable sequence. Also, pay close attention to custom components or dynamic content, such as carousels, modals, or accordions, ensuring they are fully keyboard accessible and that focus returns to the correct element after closing or dismissing them.

Visible Focus Indicators

Closely tied to keyboard navigation is the presence and clarity of visual focus indicators. When a user tabs through your website, there must be a clear visual cue indicating which element currently has keyboard focus. This outline, border, or highlight helps users understand where they are on the page and what element they are about to interact with. Without it, keyboard users are left guessing, making navigation frustrating and often impossible.

Many designers inadvertently remove or diminish the default browser focus styles, mistakenly believing they detract from the site's aesthetic. However, WCAG (Web Content Accessibility Guidelines) requires a visible focus indicator. While you can certainly style these indicators to match your brand, they must remain clearly distinguishable. Test this by repeatedly pressing the Tab key and ensuring every interactive element displays a visible focus state that stands out from its surroundings.

Semantic HTML Structure

The foundation of an accessible website lies in its semantic HTML structure. Using the correct HTML elements for their intended purpose provides crucial context for assistive technologies like screen readers. A `div` might look like a button, but without the correct semantic markup, a screen reader won't announce it as such, leaving users unaware of its interactive nature.

Manually review your HTML markup. Are you using `<h1>` through `<h6>` for headings in a logical hierarchy? Is navigation wrapped in `<nav>`? Is the main content in `<main>`? Are buttons created with `<button>` elements, not generic `<div>`s with click handlers? Are lists (`<ul>`, `<ol>`) used for lists of items? Correct semantic markup allows screen readers to accurately convey the structure and meaning of your content, enabling users to navigate efficiently and understand the page context.

Adequate Color Contrast and Beyond

Color is a powerful design tool, but its use must be carefully considered for accessibility. Users with low vision, color blindness, or those viewing your site in challenging lighting conditions may struggle to distinguish text and interactive elements if there isn't sufficient contrast between foreground and background colors. While automated tools can check contrast ratios, manual checks help you understand the *context* of these issues.

Beyond automated contrast checks, manually review how color is used to convey information. Ensure that color is never the *sole* means of conveying meaning. For example, if you use color to indicate a required field, also provide a text label or an icon.

  • Text and background color contrast for all font sizes.
  • Contrast for non-text elements like icons and graphical components.
  • Focus indicator visibility, even if it's just a change in color.
  • Error states and success messages that rely on color.
  • Interactive elements that change color on hover/focus.
  • Consider users who might have different color perceptions and ensure your design choices don't exclude them from understanding critical information.

Descriptive Links and Meaningful Alt Text

For users relying on screen readers, the text of a link or the alternative text (`alt` attribute) for an image are often their primary means of understanding content and navigating. Generic link text like "click here," "read more," or "learn more" is unhelpful when taken out of context by a screen reader user browsing a list of links. Similarly, missing or poorly written alt text for images can render visual information inaccessible.

Manually scan all your links and images. For links, ensure the text clearly describes the destination or purpose, even when read in isolation. Instead of "Click here for our services," use "Explore our web design services." For images, check that every meaningful image has concise, descriptive alt text that conveys the image's content and function. Decorative images should have an empty `alt=""` attribute to prevent screen readers from announcing them unnecessarily. This simple manual check dramatically improves the experience for users who cannot visually scan the page.

Integrating these manual accessibility checks into your web development process is a commitment to building a more inclusive web. While automated tools offer a quick initial scan, the human touch is irreplaceable for uncovering nuanced usability barriers. By taking the time to manually audit your projects, you empower all users to access and interact with your creations effectively, fostering a truly universal web experience.

Sources & Further Reading