How to Make Social Media Accessible

Most social media accessibility guidance stops at “add alt text to images.” That’s necessary, but it’s not sufficient. Your carefully crafted LinkedIn post might look perfect on your screen while being completely unusable for someone navigating with a keyboard, watching video without sound, or using a screen reader.

B2B companies already worry about engagement rates, algorithm changes, and content calendars. Adding accessibility to that list feels like one more thing nobody has time for. But accessible social media reaches more people effectively. Video with captions works for people watching without sound (which is most people). High-contrast text works for everyone, not just people with vision differences. Clear link text helps everyone scan content quickly.

Why This Goes Beyond Compliance

More than one in four adults in the United States has some type of disability. Many use social media differently than you might expect. They watch videos without sound during meetings. They use screen readers to catch up on LinkedIn while commuting. They navigate with keyboards because trackpad gestures cause pain. Your content needs to work for all of these scenarios.

Beyond disability, there’s the reality of how everyone actually uses social media. Eighty-five percent of Facebook videos are watched without sound. People scroll through LinkedIn during meetings where they can’t turn on audio. Your carefully crafted video message reaches no one if it requires sound to make sense.

The credibility question matters too. If you’re a B2B company selling professional services, your social media presence is part of your brand. Posting inaccessible content while claiming to care about diversity, inclusion, or customer experience creates a disconnect that people notice.

The Most Common Alt Text Mistakes

Most people who add alt text to images make one of these mistakes. They use “image” or “photo” as the description, which tells screen reader users nothing they don’t already know. They write alt text for charts and infographics without including the actual data. They add alt text to headshots that simply says “Photo of John Smith,” without any context for why the image matters.

Good alt text describes what the image conveys, not just what it contains. If you’re posting a headshot from a conference, “Dan Olson speaking at the Manufacturing Leadership Summit about AI search optimization” tells someone using a screen reader the same information a sighted person gets from the image. “Photo of Dan Olson” doesn’t.

Charts and graphs present a particular challenge. The visual shows a trend or comparison that matters. Alt text like “Bar chart showing Q4 revenue” is useless. Alt text like “Bar chart showing Q4 revenue increased 23% over Q3, with manufacturing sector leading at 31% growth” gives screen reader users the information that matters.

For LinkedIn specifically, many people still don’t know how to add alt text. When you upload an image, look for the “Edit” button in the corner. Click “Add alt text.” Write a description that conveys the information or context the image provides. It takes fifteen seconds.

The challenge isn’t the mechanics. It’s building the habit of checking before you post.

Video Captions: Not Optional Anymore

Eighty-five percent of Facebook videos are watched without sound. LinkedIn’s data shows similar patterns. People scroll through feeds during meetings, in airports, or anywhere they can’t turn on audio. If your video requires sound to make sense, you’ve lost most of your audience before they even decide whether to watch.

Auto-captions are terrible. LinkedIn’s automated captions regularly mistake technical terms, company names, and industry jargon. They struggle with accents. They miss context. If you’re posting video content, you need to either upload accurate captions or use a service that provides them.

The process varies by platform. LinkedIn lets you upload a SubRip (.srt) file when you post video. Facebook and Instagram have similar options for uploading captions. X allows caption files but makes them harder to add. For most B2B use cases, it’s worth using a service like Rev or Otter.ai to generate accurate captions rather than relying on platform auto-captions.

Video without captions excludes people who are deaf or hard of hearing. But it also excludes everyone watching without sound, who make up the majority of social media video viewers.

Color Contrast: Your Brand Colors Might Be Failing

B2B companies invest heavily in brand guidelines. Specific color palettes. Approved fonts. Consistent visual identity. Sometimes those carefully chosen brand colors make the text unreadable.

WCAG requires a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Light gray text on a white background rarely meets this standard. Pale blue text on light backgrounds fails. Even some combinations that look fine to you might be difficult for people with color vision deficiencies or people viewing on different screen settings.

The most common failure pattern in B2B social media: LinkedIn carousels with branded backgrounds and text overlays that look beautiful but fail contrast requirements. You can check any color combination using the WebAIM Contrast Checker in about ten seconds. Enter your text color and background color. It tells you whether the combination passes WCAG AA standards.

If your brand colors don’t meet contrast requirements, you have options. Use your brand colors for graphics and backgrounds, but stick to high-contrast text. Add a semi-transparent overlay behind text on images. Adjust color values slightly to improve contrast while staying within brand guidelines. Most brand systems have enough flexibility to make text readable without abandoning visual identity.

Emoji Overload: When Cute Becomes Chaos

Screen readers announce every emoji by its official name. The crying-laughing face emoji is “face with tears of joy.” The rocket is “rocket.” The sparkles are “sparkles.” Using emojis as bullet points or separators creates chaos for anyone listening to your content.

A LinkedIn post that looks like this visually: “Excited to announce our new partnership” contains no accessibility problems. A post that looks like this: “🚀 Excited 🎉 to announce 📢 our new 🆕 partnership 🤝” gets read by screen readers as “rocket excited party popper to announce megaphone our new new button partnership handshake.” It’s exhausting.

Emoji used sparingly for emphasis works fine. Emoji as decoration or structure makes content harder to consume for screen reader users. If you’re using emoji as bullet points, use actual bullet points instead. If you’re using emoji to separate sections, use line breaks or simple dashes.

Hashtags and Link Text

Hashtags written without capital letters are hard to read. The tag thisisanexamplehashtag requires mental effort to parse. The tag ThisIsAnExampleHashtag is immediately clear. This is called camel case, where each word starts with a capital letter. Screen readers handle camel case hashtags better, and everyone finds them easier to read at a glance.

Link text matters too. “Click here to learn more” tells screen reader users nothing about where the link goes. “Read our complete guide to WCAG 2.2 compliance” tells everyone exactly what they’ll find. Screen reader users often navigate by links, jumping from one to the next to scan content. Descriptive link text makes that navigation useful.

If you’re posting multiple links in one update, consider whether all of them are necessary. Each link becomes a navigation point. Three or four links in a single post create more complexity than most people realize when they’re navigating non-visually.

Platform-Specific Quick Wins

LinkedIn: Add alt text to every image. Upload caption files for videos. Use camel case in hashtags. Make links descriptive. Post from both personal profiles and company pages because different AI platforms cite each differently.

X: Image descriptions are available through the “Add description” option when uploading. Video captions can be uploaded, but require more steps than other platforms. Thread accessibility matters. If you’re posting a long thread, consider whether a LinkedIn article or a blog post would better serve your audience.

Instagram: Alt text is often forgotten here because the platform emphasizes visuals. Look for “Advanced Settings” when creating a post, then select “Write Alt Text.” Consider whether hashtags belong in your caption or your first comment. Both work, but the first comment keeps the caption cleaner.

Facebook: Video captions are straightforward to upload. Link previews work well for accessibility, but check that the preview text accurately describes the destination. Color contrast matters particularly for image posts with text overlays.

Bluesky: As a newer platform, it handles accessibility better than older platforms in some ways. Alt text prompts are clear. The culture around accessibility is stronger. But it’s still easy to forget if you’re cross-posting from other platforms without checking.

The Quick Audit Checklist

Before you post anything on social media, run through this list:

Images: Does every image have descriptive alt text that conveys the information or context, not just what’s in the picture? For charts or graphs, does the alt text include the key data points?
Videos: Do all videos have accurate captions? If using auto-captions, have you reviewed them for accuracy?
Text contrast: Does all text meet WCAG contrast requirements (4.5:1 for normal text)? Check with the WebAIM Contrast Checker if you’re unsure.
Emojis: Are emojis used sparingly rather than as structure or bullet points?
Hashtags: Are hashtags written in camel case (#ThisIsEasier, not #thisisharder)?
Links: Do links use descriptive text that tells people where they’re going instead of “click here”?

If you can honestly answer yes to these questions, your social media content is accessible to significantly more people than most B2B marketing content. You don’t need to be perfect. You need to develop habits that make accessibility part of your normal workflow rather than an afterthought.

Your accessible social media content works for people using assistive technology, people in contexts where they can’t use audio, people with vision differences, and everyone else who doesn’t experience social media the way you do when you’re testing it on your laptop with perfect lighting and no distractions.

Accessible social media isn’t an extra task on top of your content calendar. It’s doing social media correctly in the first place.

Sources

Centers for Disease Control and Prevention. (2024). “CDC Data Shows Over 70 Million U.S. Adults Reported Having a Disability.” https://www.cdc.gov/media/releases/2024/s0716-Adult-disability.html

Patel, S. (2016). “85 Percent of Facebook Video Is Watched Without Sound.” Digiday. https://digiday.com/media/silent-world-facebook-video/

W3C Web Accessibility Initiative. “Understanding Success Criterion 1.4.3: Contrast (Minimum).” Web Content Accessibility Guidelines (WCAG) 2.1. https://www.w3.org/WAI/WCAG21/Understanding/contrast-minimum.html

WebAIM. “Contrast Checker.” https://webaim.org/resources/contrastchecker/