SOCIAL MEDIA ACCESSIBILITY PLAYBOOK

FOR BUSY TEAMS

Social media teams are measured by speed. Content gets created and pushed out the door at the speed of light, expectations and trends are constantly changing, and timelines very rarely leave room for additions. That’s exactly why accessibility for social media gets skipped. It feels like one more thing on top of an already tight posting cadence. 

But in reality, most accessibility issues on social media come from a handful of repeated issues and patterns, which means that they can be fixed and addressed in the same way. Simply add a small set of defaults that become part of how posts are created. 

Once these defaults are in place, accessibility stops becoming a separate, time-consuming task. Instead, it becomes part of what makes a post clear. Such clarity tends to reduce revisions, not add to them. Social teams that build accessibility into their workflow often find that their content is easier to scan, easier to understand without sound, and less likely to need edits after publishing. 

THE BIG FOUR: WHAT MAKES A POST ACCESSIBLE 

The foundation of accessible social media content is held up by four core pillars: image descriptions, captioning, hashtag formatting, and text-in-image issues. Understanding these best practices is vital to creating accessible content, so keep reading for our guidance. 

Image Descriptions 

If an image contains information, that information needs to exist in text somewhere. Most platforms now support alt text, and when they don’t, a short description in the caption can fill the gap. The goal isn’t to narrate every visual detail, but to capture the purpose of the image in its context. A simple structure helps: first identify the subject, describe the action, and include any essential text. Descriptions that only restate visible text word-for-word or default to phrases like “image of a person” tend to add little value, while leaving charts or infographics undescribed removes key information entirely. When adding alt text, make sure to be concise, keep descriptions functional, and retain the purpose of the image.

Captioning 

Video is frequently consumed with low or no audio volume. Whether someone is in a public setting, scrolling quickly between tasks, or prefers to use subtitles, captions are used widely – not solely for deaf and hard of hearing audiences. Auto-generated captions can be a good starting point, but they often miss names, acronyms, and technical terms, which can change the meaning entirely. Keeping captions concise and readable matters just as much as including them. And when content mentions links or external resources, those references should appear in the caption text, too. 

Hashtag Formatting 

Hashtags increase both discovery and context, but they can easily become difficult to read and interpret when formatted poorly. For those who utilize assistive technology like screen readers, they can become a wall of noise. To help improve readability, capitalize each word within the hashtag. For example, use #DigitalAccessibility instead of #digitalaccessibility. Placement also matters. When hashtags are excessively embedded mid-sentence or stacked, they can interrupt the flow of the post. When possible, try keeping them at the end of the post to preserve clarity without sacrificing reach. 

Avoid Text-in-Image Traps 

Text baked in images often introduces several problems at once: it may be too small to read on mobile, have low contrast, or be completely inaccessible to screen readers. The most important information – like dates, deadlines, and instructions – should live in the caption, where it can be reliably accessed every time. When text must appear in an image, it should be large, have high contrast, and limited to what is essential. Otherwise, the message risks being partially or entirely lost. 

IF THE MESSAGE ONLY EXISTS IN PIXELS, IT DOESN’T EXIST FOR EVERYONE. 

These principles are written with posts in mind, but if you’ve been around social media recently, you know that short-form video is king. The good news is that these same principles apply to videos as well. This area is where accessibility and performance overlap the most. Always remember to include captions – they’re expected, not optional. Make sure they’re accurate, remain visible long enough to read them fully, and avoid placement that conflicts with the platform. Pacing also plays an important role. When we've watched our edited video ten times, we’re much more familiar with the content than the person watching it for the first and only time. Slow down captions a bit more than you think they need, focus on one idea at a time, and reinforce key points to improve both accessibility and engagement. 

PLATFORM-BY-PLATFORM QUICK RULES 

If you’re a social media professional, you’re probably well aware of the differences between platforms. While these differences do add another layer of complexity, they don’t fundamentally change our accessibility approach. 

On LinkedIn, where posts carry more context and thought leadership, alt text and clear summaries help readers understand the full picture before clicking away. Keep paragraphs short by using bullets, avoid “link-only” posts by describing what’s behind the link, and ensure the any images you share are readable with the key points in the caption. 

In complete contrast, Instagram is highly focused on visuals and short-form content. This emphasis increases the risk of relying heavily on images, making captions and alt text even more important. Use alt text when available and add captions to reels every time. Also make sure to keep stories readable with high contrast, large text, and minimal clutter. 

Facebook, however, has more of a mixed audience, which means it’s important to repeat key details – like event dates, times, and locations – to ensure viewers retain that information. Avoid simply posting flyers as images without repeating details in text. 

On faster platforms like X (formerly Twitter), structure is critical. This is where it’s vital to keep hashtags out of the main sentence flow. And if you’re creating a thread with multiple posts linked together, keep one point per post. 

Video-first platforms like TikTok and YouTube are a different beast than text- or image-based platforms. With videos, cations are mandatory. And with captioning comes a whole set of additional best practices, like avoiding tiny on-screen captions that are difficult to read. In addition, speak clearly and avoid relying on background music to carry meaning. 

Before publishing, a short checklist can act as a final filter. The most important question is whether the main message exists in text, rather than being locked inside an image or audio track. From there, the basics include: 

1  Is alt text present? 

2  Are captions added? 

3  Is on-screen text readable? 

4  Are hashtags formatted with clarity? 

5  Do links explain what the user will find? 

6  Are infographics explained? 

7 Do visual elements avoid rapid transitions? 

For teams managing a constant stream of content, the goal isn’t to perfect each individual post. Instead, establish a baseline that can be applied consistently. When accessibility becomes part of that baseline, it tends to improve the overall quality of the work. Posts become easier to understand, more adaptable across platforms, and less likely to require correction after the fact. What once felt like an additional step becomes the default way that content is created, and the distinction between accessible and “normal” posts begins to lessen and eventually, disappear entirely. ●