Have you ever tried navigating a website without a mouse, relying only on your keyboard? It might seem unusual, but for many people with motor disabilities or visual impairments, this is their everyday reality. Focus outlines—the visual markers that highlight where you are on a page—are essential tools that make this possible.

Unfortunately, these outlines often get overlooked or even removed during web design, leaving a significant number of users struggling to navigate sites effectively. Let’s break down what focus outlines are, why they matter, and how you can implement them to make your website more inclusive.

What Is a Focus Outline?

A focus outline is a visual indicator, often a highlighted border or underline, that appears around a web element when it gains keyboard focus. This outline helps users understand which interactive element they are currently on, whether it’s a link, button, form field, or other focusable component. For example, when a user tabs through a webpage, the focus outline moves from one element to the next, providing a visual cue about their current location on the page.

This feedback is essential for users who cannot use a mouse and instead navigate by pressing the “Tab” key to move forward and “Shift + Tab” to move backward. For those relying on screen readers, focus outlines further aid in understanding the structure of a page, confirming the position on the screen, and reducing the cognitive load required to navigate the web effectively.

Why Focus Outlines Matter for Accessibility

Focus outlines aren’t just nice to have—they’re a must-have for accessibility. According to the Web Content Accessibility Guidelines (WCAG), specifically criterion 2.4.7: Focus Visible, mandate that any keyboard-operable interface must have a visible focus indicator. This ensures that users relying on keyboard navigation always know where they are on the page.

Who Benefits from Focus Outlines?

For users with motor disabilities, such as those who have difficulty controlling fine motor movements or are unable to use a mouse, keyboard navigation is a primary means of interacting with digital content. The focus outline serves as a reliable marker of where they are on the page, making navigation smooth and efficient. People with low vision or visual impairments who use high-contrast settings also rely on focus outlines for an additional layer of navigation support, enabling them to visually follow along.

Legal and Ethical Responsibilities

Beyond enhancing the user experience, implementing visible focus outlines is a legal and ethical responsibility for organizations. Without them, websites may fail to meet accessibility standards, putting them at risk of non-compliance with the WCAG guidelines. For organizations, following WCAG isn’t just about adhering to regulations; it’s about creating an inclusive experience that all users can navigate.

How to Create Accessible Focus Outlines

Making focus outlines accessible and noticeable is all about ensuring they stand out. Here are some tips:

• Use Sufficient Color Contrast: Choose colors that contrast well with both the element and the background.
• Choose a Noticeable Style: Solid, dotted, or dashed lines can all work, as long as they’re easily visible.
• Adjust Thickness: A thicker outline can be more eye-catching and easier to see.

How to Style Focus States Using CSS

Outlines can be solid, dotted, or dashed lines, as long as they are visible. Adjusting the thickness can also make the outline more noticeable.

Example: Basic Focus Outline with CSS

button:focus,
a:focus {
  outline: 3px solid #007acc;
}

In this example, we’ve applied a 3-pixel solid blue outline to buttons and links when they’re focused. Before finalizing colors, use tools like the WebAIM Contrast Checker to ensure they meet the recommended contrast ratio of at least 3:1 for user interface components.

Add Background Effects

For a more custom look, consider adding a background color or shadow effect:

button:focus {
  outline: none;
  box-shadow: 0 0 5px 2px rgba(0, 122, 204, 0.8);
}

This replaces the default outline with a subtle glow, making the focused element stand out without clashing with your design. Just remember to test these styles to ensure they’re visible to everyone, including users with visual impairments.

Avoiding Common Mistakes with Focus Outlines

One of the most common pitfalls in web design is removing focus outlines entirely. Designers sometimes find default focus outlines unattractive and may remove them without providing a suitable replacement. While this might make the site look cleaner, it creates significant accessibility barriers for users relying on keyboard navigation. WCAG guideline 2.4.7 requires focus indicators for compliance, so removing focus outlines can result in a failure to meet accessibility standards.

If you’re tempted to hide the default outline, remember that it’s better to customize it than to remove it. Replacing the outline with a custom design can enhance the aesthetics of your website without sacrificing accessibility. Just ensure that your custom design maintains a strong visual presence and sufficient color contrast.

Another common mistake is creating focus outlines that blend too closely with the background. This can happen when designers use colors that don’t contrast well with surrounding elements or backgrounds. Remember, users with low vision may struggle to differentiate between similar shades, so it’s essential to test the visibility of focus outlines across various screens and devices.

Testing Focus Visibility

Testing is a crucial step to ensure your focus outlines are effective:

1. Navigate Your Site Using Only the Keyboard: Press the “Tab” key to move through interactive elements and observe the focus outline.
2. Check Every Interactive Element: Ensure that links, buttons, form fields, and other focusable components have a visible focus state.
3. Assess Visibility and Consistency: The focus outline should be easily noticeable and consistent across your site.
4. Accessibility Tools: Tools like Google Lighthouse or WAVE can check WCAG compliance, including focus outlines.

Make Focus Outlines a Priority

Focus outlines aren’t just a design detail—they’re a vital part of creating an inclusive web experience. By ensuring your site has clear and consistent focus indicators, you can make your website more accessible for everyone. So, take action today to ensure your website is accessible. Your customers—and your bottom line—will thank you!

For personalized guidance on making your website ADA compliant, reach out to 216digital for an ADA briefing. Our experts are here to help you navigate the complexities of web accessibility and secure your business against potential legal risks.