Best ADA Compliant Fonts for Websites 2025

Melwyn Joseph

07 April 2025 | 5 minute read
Illustration of a designer working on font settings for accessible, ADA compliant typography on a computer screen.

Not all fonts are created equal – especially when it comes to accessibility. For people with disabilities, the right font can mean the difference between a smooth, inclusive experience and one that feels frustrating or confusing.

In this blog, we’ll explore the best ADA compliant fonts for websites in 2025, including recommended typefaces, font sizes, and tips for readability. By the end, you’ll know exactly what font to choose to make your website more accessible and inclusive for everyone.

What Makes a Font ADA Compliant?

The Web Content Accessibility Guidelines (WCAG) and Section 508 Standards don’t explicitly name any fonts as ADA-compliant or accessible. However, they provide helpful criteria for selecting accessible fonts.

Here are the key criteria to consider:

  • Sans-serif style: No decorative strokes; easier to read on screens.
  • Clear characters: I, l, and 1 should look different.
  • Consistent spacing: Even letter and word spacing to improve readability.
  • Legible at any size: Must stay clear when zoomed or resized.
  • Simple shapes: Avoid italic, script, or decorative styles.

While this list isn’t exhaustive, it covers some of the most important font traits to consider when aiming for ADA compliance and inclusive design. Now let’s take a look at the fonts that best embody these principles.

What are the Best ADA Compliant Fonts?

  • Atkinson Hyperlegible
  • Roboto
  • Helvetica
  • Verdana
  • Arial
  • Tahoma
  • Calibri

Atkinson Hyperlegible

Atkinson Hyperlegible was designed by the Braille Institute to help people with low vision read more clearly.  Its exaggerated letter shapes make similar characters like “I,” “l,” and “1” easy to tell apart. It’s one of the most accessible fonts available.

"The web should be accessible to everyone" written in Atkinson Hyperlegible.

Roboto

Roboto is a clean, modern sans-serif font developed by Google. It strikes a nice balance between geometric structure and friendly curves. It’s highly readable on screens, making it perfect for websites and mobile apps.

"The web should be accessible to everyone" written in Roboto

Helvetica

Helvetica is a classic font known for its simple, neutral design. It’s widely used in accessible design because of its clarity and clean lines. While it may not be available on all systems, it’s a favorite among designers for good reason.

"The web should be accessible to everyone" written in Helvetica

Verdana

Verdana was made specifically for screen use, with wide letter spacing and large characters. It’s very readable at small sizes, which makes it great for body text. If you want something easy on the eyes across all devices, Verdana delivers.

"The web should be accessible to everyone" written in Verdana

Arial

Arial is a default font on almost every system, making it a reliable choice for accessibility. It’s simple, clean, and works well for both headings and body text. Because of its familiarity and clarity, it’s often a go-to for ADA-friendly design.

"The web should be accessible to everyone" written in Arial

Tahoma

Tahoma is similar to Verdana but slightly more compact, making it useful in tighter spaces. It has a clean, even stroke width that keeps text easy to read. It’s especially good for UI elements like buttons, labels, and menus.

"The web should be accessible to everyone" written in Tahoma

Calibri

Calibri is a soft, modern font with rounded edges that give it a friendly look. It was Microsoft’s default font for years and is still widely used in accessible documents. It’s a good all-around option for digital content that needs to be easy to read.

"The web should be accessible to everyone" written in Calibri

What Is the Best Font Size for ADA Compliance?

The recommended ADA font size for regular body text is 16px (12pt). For headings, a minimum of 24px (18pt) is suggested. Additionally, WCAG requires that all text be scalable up to 200% without loss of content or functionality.

Take the Next Step Toward True Accessibility

Choosing an ADA-compliant font is a smart move toward building a more inclusive website – but it’s only one piece of the puzzle. True accessibility means considering how every part of your site supports users of all abilities, from text and colors to navigation and structure.

Not sure how accessible your site really is? Run a free accessibility audit with WebYes to uncover hidden barriers and get clear, actionable steps to make your site fully inclusive. Because accessibility isn’t just about compliance – it’s about creating a better web for everyone.

FAQ

What makes a font ADA-compliant?

A font is ADA-compliant if it is easy to read, has clear character distinction, uses a sans-serif style, and works well with assistive technologies. Additionally, it should be legible at various sizes and scalable without breaking the layout.

Are there specific fonts approved by the ADA?

No, the ADA doesn’t specify exact fonts. However, fonts like Atkinson Hyperlegible, Arial, Roboto, Verdana, and Helvetica follow best practices for accessibility and are widely considered ADA-friendly.

What font size is required for ADA compliance?

The WCAG recommends using at least 16px (12pt) for body text and 24px (18pt) for headings on websites to ensure readability. When users can’t resize text – such as on kiosks or closed systems – the ADA requires a minimum height of 3/16 inch (4.8 mm), based on the uppercase “I”.


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