Creating Accesible Content
Following digital accessibility guidelines makes online content usable to everyone!
A disability is a physical or mental impairment that substantially limits one or more major life activity. A disability ubstantially limits a person’s daily life and/or their bodily functions or systems including:
- Thinking, concentrating, speaking, seeing, hearing, sleeping, etc.
- Walking, sitting, standing, bending, caring for oneself, etc.
- Immune, respiratory, endocrine, reproductive, neurological, etc.
Disabilities vary in permanence, and there are many types. This includes people with physical, visual, auditory, and cognitive impairments, and people with learning disabilities.
| Type | Situational | Temporary | Permanent |
|---|---|---|---|
| Touch | New parent![]() | Arm injury![]() | One arm![]() |
| See | Distracted ![]() | Cataract![]() | Blind![]() |
| Hear | Bartender![]() | Ear infection![]() | Deaf![]() |
| Speak | Heavy accent![]() | Laryngitis![]() | Non-verbal![]() |
| Cognitive | Intoxicated![]() | Flu![]() | Dyslexia![]() |



What is Digital Accessibility?
Digital accessibility is the practice of designing and developing digital content, applications, and services so that they can be used by everyone, including people with disabilities. It involves ensuring that websites, apps, and other digital tools are usable by individuals who may use assistive technologies like screen readers or magnifiers. A core principle is to proactively remove barriers so that no one has to ask for individual accommodations to access information.
Why is Digital Accessibility Important?
- Equal Access: Digital accessibility promotes inclusivity by providing equal access to information and services for people with disabilities. It ensures that everyone can participate fully in the digital world.
- Compliance: Title II of the Americans with Disabilities Act and Section 504 of the Rehabilitation Act require that state and local governments, including K-12 public schools, provide equal access to services, activities, and programs.
- Enhanced User Experience: Accessible design often leads to improved usability for all users, not just those with disabilities. For example, features like captions, alt text, and clear navigation can benefit everyone.
Types of Digital Content
Digital accessibility applies to various types of content including, but not limited to:
- Web content: Ensuring that web pages are navigable and understandable by users with disabilities.
- Documents: Making PDFs, Word documents, and other formats accessible with proper formatting and tags.
- Multimedia: Providing captions, transcripts, and audio descriptions for videos and audio content.
- Software and Applications: Designing software interfaces and mobile apps that are operable by users with different abilities.
- Online Forms: Creating forms that are easily navigable and usable with assistive technologies.
Source: https://www.dpi.nc.gov

Why Digital Accessibility Matters
“Inaccessible web content means that people with disabilities are denied equal access to information. An inaccessible website can exclude people just as much as steps at an entrance to a physical location.“
People with disabilities navigate the web in a variety of ways.
- People who are blind may use screen readers, which are devices that speak the text that appears on a screen.
- People who are deaf or hard of hearing may use captioning.
- People whose disabilities affect their ability to grasp and use a mouse may use voice recognition software to control their computers and other devices with verbal commands.
Making the Web and digital Content Work
The World Wide Web Consortium (W3C) develops standards and guidelines to help everyone build a web based on the principles of accessibility, internationalization, privacy and security.
- Web standards are the building blocks of a consistent digitally connected world. They are implemented in browsers, blogs, search engines, and other software that power our experience on the web.
- W3C is an international community where Members, full-time staff, and the public work together to develop web standards.
- We use guidelines set by the W3C to make digital content accessible.
- Levels include:
- AAA: The highest level of conformance, which requires meeting all A, AA, and AAA success criteria. It is not always feasible to achieve this level on every website.
- AA: The intermediate level, which includes all Level A and AA success criteria. This is the level most often recommended and legally required for many sites.
- A: The lowest level of conformance, addressing the most basic accessibility barriers.
Source: https://www.w3.org


The Core Principles of Accessibility: POUR Principles
The POUR principles—Perceivable, Operable, Understandable, and Robust—are the four pillars of the Web Content Accessibility Guidelines (WCAG), which ensure digital content is accessible to all users, including those with disabilities.
- Perceivable means information can be presented to users in ways they can perceive through their senses, such as with text alternatives for images.
- Operable means users can operate the interface and navigate content, regardless of their input method, like a keyboard, mouse, screenreader, or speech-to-text application.
- Understandable means the content and the interface are easy to comprehend and predictable.
- Robust means the content can be reliably interpreted by a wide variety of user agents, including assistive technologies.
Creating Accessible Digital Content
Content Hierarchy

Design and Write for Easy Reading
Readers scan content, so make your content scannable.
- Help readers find what they need with ease.
- Remove information that distracts from completing key tasks.
- Simplify our language.
- Make use of bulleted lists, headings, and other semantic structrues.
- Break content into smaller, bite-sized chunks of content makes it easy for users to scan different topics on a page.
- Use keywords at the beginning of a paragraph or sentence.
- Use short paragraphs.
Semantic Structure



Semantic Structure
Semantic structure provides an organized hierarchy for your content. This makes it easier for users with assistive technologies, such as screen readers, to navigate and understand information. This applies to websites, documents, presentations, and applications.
Headings
The hierarchy should be established through headings, subheadings, and other organizational elements. Heading text should be clear and concise. You want to convey as much meaning as you can in as little text as possible.
Think of your document like an outline for an essay. Heading 1 (h1) should be the page title. There is only one title or Heading 1 on a page.
The next level down would be Heading 2 (h2). Under those headings, you would use H3, etc. Headings must go in sequential order. You can have multiple Headings 2-6.

Paragraphs
A paragraph’s semantic structure typically consists of a topic sentence, supporting sentences, and a concluding sentence. The topic sentence presents the main idea, supporting sentences provide details and evidence, and the concluding sentence summarizes or provides closure.
Lists
Lists are a great way to break up longer pieces of text. Example of a paragraph broken up into a list.
- Bulleted lists are used for lists with no important order.
- Numbered lists used are for specifically ordered lists.
Example:

Tables
- Use tables for tabular data only. Do not use a table to format non-tabular data.
- Include table titles, headings, and alt text.
- Do not combine separate tables.
Typography

Fonts and Characters
- Sans-serif fonts like Source Sans Pro, Arial, and Calibri are easier to read.
- Avoid using all caps and excessive italics or underlines.
- When possible, avoid special characters like the ampersand (&).
- Do not use excessive punctuation.
- Keep text at a reasonable size, no lower than 11 or 12 points (14 or 16 pixels, points to Pixels converter).
- Ensure perceivable differentiation between all heading and paragraph styles.
- Ensure sufficient line spacing. Use built-in paragraph-styling tools or CSS rather than extra line breaks.
- Underline hyperlinked text.
- Create bold/or larger headings for easier scanning.
Plain Language

Written Content Best Practices
- Think about the tasks users want to complete and the information they want to find.
- Put the most important information first.
- Start broad and get more specific.
- Consider and respect everyone who consumes your content.
- Communicate with empathy and purpose: Think about the questions readers might ask by putting ourselves in their shoes.
- Use clear calls to action.
- Use headings, lists, and other semantic structures to help readers navigate.
- List resources in order of importance.
Plain Language Benefits
Plain language is writing designed to be understood as quickly and clearly as possible
- Easier to understand.
- Readers make fewer mistakes.
- Readers find answers more quickly.
- Readers need less assistance.
- Improves accessibility, inclusivity, searchability, readability, and scaleability.
Guidelines
Be Clear and Concise
- Use short, meaningful headings.
- Stick to one idea per paragraph.
- Use keywords in the beginning of each paragraph.
- Use simple sentence structures and simpler language.
- Be concise, simple and clear – less is more. For example “Use” vs. “Utilize”; “If” vs. “In the event of”
- Avoid slang, jargon, clever, or humorous language.
- Avoid repetition.
- Be consistent.
- Write at an 8th-grade reading level (https://hemingwayapp.com).
- Aim for a Microsoft Word readability score of 70 or greater.
Be Conversational and Approachable
- Write in an informational, active voice
Pro tip: if you can add “by zombies” to the end of a sentence, you’re using passive voice.
Examples:
Passive: The course was offered by the department of Animal Sciences in 2021.
Active: We offered the class in 2021. - Write positively.
- Use I, you, we, and us pronouns.
- Use “you” statements.
- Use inclusive language.
- Guide readers through the information.
- Write for your audience, not experts.
Assume your audience is new to the subject, avoid jargon or overly technical terms.
Tool: Hemingway app
Inclusive Language

Principles to Remember
- Put people first:
It is essential to focus on the person, not their characteristics.(e.g., woman who is blind vs. blind woman.) - We are more than our descriptors:
Avoid generalizations and don’t assume someone’s identity unless relevant to the discussion, like inviting women students to meet your women in leadership at a STEM networking event. - Use universal phrases:
Idioms, industry jargon, and acronyms can exclude a candidate who may not have specialized knowledge of a particular subject and can lead to miscommunication. Plus, many idioms don’t translate well globally across languages or countries. - Use gender-neutral language:
Inclusive ways to address a group: e.g., folks, people, team.
Inclusive verbs and adjectives: e.g., fireperson - Recognize the impact of mental health language:
“Bipolar,” “PTSD,” “OCD,” and “ADD” are real mental health diagnoses that people possess. Avoid other derogatory terms that stem from the context of mental health, like “schizo,” “paranoid,” “psycho,” “crazy” or “insane. - Educate Yourself and Ask if you aren’t sure:
Inclusive language is nuanced and is meant to reflect an individual’s or group’s personal style and preference.
Source: Handshake.com
Resource: apstylebook.com
Link Text

Whenever possible, provide link text that identifies the purpose of the link without needing additional context. Meaningful links help users choose which links to follow without requiring complicated strategies to understand the page.
Tips:
- Pretend someone is reading this to you and you can’t see it. Does the link text make sense?
- Put keywords at the beginning of the link phrase.
- Search your content for “Click Here” or “Learn More,” – You shouldn’t find these phrases.
- Don’t spell out full urls in your text unless:
- you are trying to get the users to memorize a short url
- you are using an email link, in which case, spell out the email address in addition to linking it.
- you are trying to get the users to memorize a short url
Color Contrast

Color contrast is the difference between the color of text and the color of the background behind it. Certain color contrast ratios can result in the text of a graphic or image being difficult to read. Excluding logos or brand names, it is best to maintain a contrast ratio of 4.5:1 for regular text and 3:1 for large text. This ratio is the minimum required for federal content creators. Use a color contrast analyzer to determine the ratio of your graphic. There are various free versions of these tools available online.
Tips
- Use high-contrast color schemes on opposite ends of the color spectrum for readability, such as white and black.
- Avoid using color alone to convey meaning. Use color along with a secondary element, such as shape or text differences.
- Use color contrast checkers, such as this Color Checker.
- Check out University of Illinois brand accessible color combinations.
- For standard texts:
size less than 24px: contrast of 4.5:1 minimum
size greater than or equal to 24px: contrast of 3:1 minimum - For bold texts:
size less than 18.5px: contrast of 4.5:1 minimum
size greater than or equal to 18.5px: contrast of 3:1 minimum - For non-underlined links
contrast of 3:1 minimum with the surrounding text and with the background color
Source: Color contrast guidelines
Source: https://www.section508.gov
Images

Images are a great way to break up sections of text and enhance the design of an email. However, there are some image guidelines.
Always add alternative text:
Alternative text describes the contents of an image as it relates to the overall context of a document or webpage.
Avoid embedding text in images:
- Text in your content should be live text, not text embedded in an image as screen readers cannot detect it. Use short, descriptive alt text for the image.
- If you have embedded text in an image, be sure to write that text out elsewhere in your document.
- You can check if text is live or embedded by clicking on the graphic. If you can select the text, it’s probably live. If you can’t, it’s probably embeded.
Alternative Text


Alt text (short for alternative text) text is a hidden, descriptive text for search engines and screen readers, while a caption is visible text that appears near the image, providing context and additional information for all users. Alt text focuses on describing the image’s content for accessibility, while captions are a form of storytelling or supplemental information.
Tips
- Describe how the contents of image relates to written content.
- Add alt text to all non-decorative images.
- If an image is purely decorative without contextual meaning, you can mark it as “decorative.”
- Don’t include “image of” or “photo of”.
- Complex alt text descriptions may be used to explain infographics, charts, or graphs, but a better practice is to present the information using a semantic element like a list or paragraph.
- For images that serve as links, alt text should be the link description.
- Hide or remove your image and read the alt text to see if it fits
Source: WebAIM.org
Videos


Captions, Transcripts, and Audio Descriptions
Captions and transcripts allow people with hearing impairments or other disabilities to access and understand the audio content in videos or other multimedia. Captions and transcripts can also help people with cognitive disabilities or those who are non-native speakers of the language of the video language.
- Captions provide a short text version of the audio while the video is playing. Example of captioned video
- Transcripts provide the full content script. Transcripts can be added as live text to a page or a downloadable file. Example of video transcript
- Audio Descriptions explain what is physically happening in the video. Example of audio descriptions
Documents

Creating accessible documents is crucial for ensuring all students can effectively engage with course materials. This includes students who are blind or low vision, use a keyboard to navigate, use screen readers, Braille displays, or other assistive technology. Documents like Word, PDF, PowerPoint, and Excel can be made accessible by applying the following basic design principles outlined above.
Emails

Accessible email planning and design improves usability for everyone on your mailing list. Accessible email practices include writing, designing, and coding emails that people can easily understand and engage with regardless of their physical or mental constraints. This includes optimizing emails for assistive technology.
As a university, we depend on emails with wide distribution to notify staff, faculty and students of upcoming events. These emails tend to include graphical elements, such as event flyers, that contain textual information. We must ensure that the messaging we send out can be read in multiple ways, including by assistive technologies such as screen reader software.
In 2024, more than 6000 students and employees on campus had an accommodation due to a disability, and it is estimated that the prevalence of disabilities on campus is nearly double that number. Some of these individuals have visual impairments that do not allow them to see images or to read image-based text, due to disabilities such as blindness, low-vision, colorblindness or difficulties processing text in a visual format. If not constructed properly, the content of many of the emails we distribute will not be available to those who are blind, who require software to assist them to read or to those who have configured their email clients not to download images.
Social Media

Accessible social media content is crucial for fostering inclusivity and ensuring equal participation for all individuals, regardless of ability. By implementing accessibility features such as alt text for images and closed captions for videos, creators can make their content more accessible to people with disabilities.
- Emojis can help make social media posts more engaging for users. However, having too many emojis in one post can be confusing or annoying for users using screen readers, as these programs will individually describe each emoji, which can take a lot of time. Additionally, using several emojis in a row can cause the same problems. Therefore, it is best to limit your overall use of emojis and avoid using several emojis in a row.
- GIF stands for Graphics Interchange Format. It’s a type of file that can show still images or animations. GIFs are popular on social media for reactions without words, usually as continuously looping animations. As these animations don’t have user controls to pause, stop or hide the animation, and may include harmful flashing or blinking, we do not recommend using GIFs in social media. Also, if your GIF contains text, then check its color contrast ratio; if it is not accessible, then do not use the GIF.
- Hashtags are useful in directing users to your posts. However, hashtags containing multiple words can present accessibility issues for users of screen readers. These programs may see a multiword hashtag as being one word and they will read it as such, which can result in a confusing or unintelligible pronunciation. Therefore, always capitalize each word in a multiword hashtag. For example: #FourthOfJuly.
Tools and Resources
Chrome Extensions
- Colour Contrast Checker
- High Contrast
- Color Contrast Analyzer – great for text on images (instructions)
- WCAG Color Contrast Checker
- Web Accessibility Evaluation Tool (WAVE)
- Web Accessibility in Mind – Color Contrast Checker, Link contrast checker
- A11y Project: Checklist
- CKEditor Add-ons
- Functional Accessibility Evaluator (FAE)
- Lighthouse
- AInspector WCAG | Mozilla Add-ons
- Accessibility Bookmarklets
- Speechify – Chrome extension
- Silktide – Chrome extension
Resources
- University of Illinois Marketing – color and branding information
- Illinois Color Checker
- University of Illinois Website Accessibility – quick links
- University of Illinois IT Accessibility
- Deque – Basic Web Accessibility Checklist for Designers (pdf)
- Division of Disability Resources and Educational Services (DRES) (student services)
- Web Content Accessibility Guidelines (WCAG) Quick Reference Guide
- Web Accessibility Evaluation Tool (WAVE)
- Web Accessibility in Mind – Color Contrast Checker, Link contrast checker
- Link text guide
- Alt text guide
- ANDI
Education
- Coursera – Intro to Accessibility (FREE for UIUC fac/staff)
- IT Accessibility Liaison Program (ITAL)
- Explore with Hadi, monthly accessibility talk about specific topics.
- International Association of Accessibility Professionals
Pulling it All Together
Class Activity
Your mission is to identify accessibility issues on this sample page, and make suggestions for how to fix them! Use the information in each section and the Silktide Accessibility Checker to help inform your decisions.














