How to Write Accessible Content for the Web

One billion people worldwide—15% of the global population—live with some form of disability. Many more experience temporary or situational impairments: a broken arm, bright sunlight on a screen, a noisy environment. Accessible content isn't just about compliance or charity; it's about reaching the largest possible audience with your message.

Web accessibility often focuses on technical implementation—ARIA labels, semantic HTML, color contrast ratios. But content itself plays an equally important role. The clearest code in the world can't fix confusing language, illogical structure, or missing context. Writers and content creators are on the front lines of accessibility.

The good news: accessible writing is better writing. The same principles that help a screen reader user navigate your content—clear headings, descriptive links, concise sentences—help every reader understand your message faster. This guide covers practical techniques for creating content that works for everyone, from language choices to formatting decisions.

Clear Language Principles

Cognitive accessibility affects far more people than physical disabilities. Writing that's easy to understand benefits users with learning disabilities, dyslexia, ADHD, autism, and cognitive decline—plus everyone reading in a hurry, in a second language, or while distracted.

Use Plain Language

Aim for 6th-8th grade reading level for general audiences. Use common words over technical jargon. "Use" beats "utilize." "Help" beats "facilitate." If you must use technical terms, define them on first use or link to a glossary.

Keep Sentences Short

Long sentences with multiple clauses increase cognitive load. Aim for 15-20 words on average. Break complex ideas into multiple sentences. Use one idea per sentence.

Be Direct

Put the main point first. Use active voice. "Click the button to submit" is clearer than "The form will be submitted when the button is clicked." Front-load important information in paragraphs and sections.

Avoid Idioms and Metaphors

"Break the ice," "low-hanging fruit," and "move the needle" confuse non-native speakers and some cognitive disabilities. Literal, concrete language is universally clearer. If you use figurative language, ensure the meaning is obvious from context.

Content Structure for Assistive Technologies

Screen readers and other assistive technologies navigate content through its structure. What appears as visual hierarchy on screen translates to semantic meaning in code.

Heading Hierarchy

Use proper heading levels (H1, H2, H3) in logical order. Screen reader users often navigate by headings, jumping between sections. Never skip levels (H1 to H3) or use headings purely for visual styling. Each page should have exactly one H1.

Descriptive Headings

Headings should describe the content that follows. "Benefits" is less accessible than "Benefits of Regular Exercise." Users scanning headings should understand your page structure without reading body text.

List Usage

Use proper list markup (<ul>, <ol>) for groups of related items. Screen readers announce "list of 5 items," helping users understand content structure. Don't fake lists with dashes or asterisks in plain text.

Table Accessibility

Data tables need proper headers (<th>) and scope attributes. Complex tables with merged cells are difficult for screen readers—simplify when possible. Never use tables for layout; use CSS instead.

Writing Accessible Links

Links are navigation landmarks. Screen reader users often browse pages by link, hearing link text without surrounding context. This makes link writing crucial for accessibility.

Avoid "Click Here"

Generic links like "click here," "learn more," or "read more" are meaningless out of context. A screen reader user browsing links hears: "click here, click here, click here, learn more, click here." Which goes where?

Instead: "Download our accessibility checklist" or "Learn about screen reader compatibility." The link text should make sense standalone.

Describe the Destination

Link text should indicate where the link goes or what will happen. "Our pricing page" is clear. If the link downloads a file, say so: "Download the report (PDF, 2MB)." If it opens in a new window, indicate that too.

Don't Overlink

Too many links create noise. Screen reader users must listen to each link announced. Link only when it adds value, and consider grouping related links into navigation sections.

Alternative Text and Multimedia

Non-text content requires text alternatives for users who can't perceive the original format—whether due to visual impairment, slow connections, or browser settings.

Writing Effective Alt Text

Alt text should convey the purpose of an image, not just describe it. For a chart, describe the key finding, not "bar chart showing data." For a decorative image, use empty alt text (alt="") so screen readers skip it.

Keep alt text concise (125 characters or less). Don't start with "image of" or "picture showing"—screen readers already announce it's an image. Focus on what the reader needs to know.

Video and Audio

Videos need captions for deaf and hard-of-hearing users. Captions also help users in sound-off environments (public transit, open offices). Auto-generated captions are a start but require editing for accuracy.

Audio content needs transcripts. Podcasts, audio clips, and video audio tracks should have text alternatives. This also benefits SEO—search engines can't listen to audio.

Formatting for Readability

Visual presentation affects cognitive accessibility and reading comfort for users with dyslexia, low vision, and attention difficulties.

• Left-align text — Justified text creates uneven spacing that's harder to track for dyslexic readers.
• Adequate line spacing — Use 1.5x line height minimum. Cramped text is harder to read.
• Avoid all caps — ALL CAPS removes word shapes that aid recognition. Use for single words or abbreviations only.
• Short paragraphs — Dense text blocks overwhelm readers. Use 3-4 sentences maximum.
• Sufficient contrast — Text should have at least 4.5:1 contrast ratio against background (WCAG AA).
• Resizable text — Never prevent text zoom. Users with low vision need to enlarge text.

Frequently Asked Questions

Conclusion

Accessible writing isn't a separate skill from good writing—it's an essential aspect of it. Clear language, logical structure, and thoughtful formatting benefit every reader while ensuring no one is excluded.

Start by auditing your existing content. Read it aloud to catch awkward phrasing. Check heading structure. Review link text out of context. Small improvements compound to create significantly more inclusive experiences—and better content for everyone.