Summary: Using sentence case enhances readability and accessibility in UX design by mimicking natural language, reducing cognitive load, and aiding screen reader compatibility.

why use sentence case

As a professional content designer, one principle stands out for creating content that is both effective and accessible: using sentence case. This approach to writing capitalises only the first word of a sentence and proper nouns, keeping everything else in lower case. It’s a subtle yet powerful way to enhance readability and accessibility, making it an essential tool in a UX designer’s toolkit.

Understanding sentence case

Sentence case is straightforward. It follows the natural pattern of how we write and read everyday sentences. Here’s an example:

  • Sentence case: The quick brown fox jumps over the lazy dog.
  • Title case: The Quick Brown Fox Jumps Over The Lazy Dog.

While title case and all caps have their places, sentence case remains the most user-friendly and versatile option in UX design.

Enhancing readability

One of the primary goals in UX writing is to ensure that content is easy to read and understand. Sentence case achieves this by:

  • Mimicking natural language: It aligns with how we naturally write and speak, making text appear familiar and less intimidating.
  • Reducing cognitive load: Users can process sentence case more quickly because it requires less cognitive effort compared to title case or all caps.
  • Improving scanning: In a digital environment, users often scan text rather than read it word-for-word. Sentence case aids this process by creating a visual flow that is easy to follow.

Boosting accessibility

Accessibility is a cornerstone of good UX design. By adopting sentence case, we cater to a broader audience, including those using screen readers and other assistive technologies.

  • Screen reader compatibility: Screen readers interpret sentence case more naturally, providing a smoother experience for visually impaired users. They often struggle with title case or all caps, as these can be misinterpreted or read incorrectly.
  • Reducing misinterpretation: For people with cognitive disabilities, sentence case is easier to understand. All caps can be perceived as shouting, and title case can confuse users about the importance of each word.
  • Consistency and predictability: Sentence case maintains a consistent and predictable pattern, which is crucial for users with learning disabilities. Consistency helps them navigate and comprehend content without unnecessary confusion.

Practical applications

In UX design, the application of sentence case can be seen across various content types:

  • Headings and subheadings: Using sentence case in headings and subheadings makes them more approachable and easier to read. It ensures that important information is conveyed without overwhelming the reader.
  • Buttons and labels: For buttons and labels, sentence case is preferred as it provides clarity and avoids the abruptness that all caps can convey. For instance, “Submit form” is clearer and friendlier than “SUBMIT FORM.”
  • Error messages and notifications: These critical pieces of information should be as clear and unambiguous as possible. Sentence case helps in delivering these messages in a way that is easy to understand and process quickly.

Evidence from research

Research and best practices support the use of sentence case in UX writing. The UX Design Institute, a leading authority in UX education, teaches sentence case as a best practice for its simplicity and effectiveness. Studies have shown that users are more likely to engage with and comprehend text written in sentence case. This leads to better user experiences and higher satisfaction rates.


In the realm of UX design, where clarity and accessibility are paramount, sentence case stands out as the optimal choice for writing. It enhances readability, supports accessibility, and aligns with natural language patterns. By adopting sentence case, UX designers can create content that is not only user-friendly but also inclusive, ensuring that all users, regardless of their abilities, can access and understand the information presented.

As we continue to design and write with the user in mind, let’s champion sentence case as a standard practice. It’s a small change that makes a significant difference in creating an inclusive and engaging user experience. Embrace sentence case, and watch your UX design flourish.

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