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  • Building accessible missions

    Words, colors, and images

    Check color contrast

    Ensure text stands out against its background for readers with low vision or glare.

    Test contrast ratios with WebAIM Contrast Checker

    Add alt text to images

    Describe the meaning and context of images for people who can’t see them.

    How to write alt text (Deque Guide)

    Organize page structure

    Group content into clear, logical sections using simple HTML layout tags to help screen readers, keyboard users, and mobile readers navigate your site with ease.

    Learn page structure (W3C Tutorial)

    Hide decorative icons

    Mark non-essential visuals with alt=”” or aria-hidden=”true” so screen readers can skip them.

    Learn how to hide decorative images (W3C)

    Use plain language

    Use short sentences, active voice, and clear words so your content is easy to digest.

    Read plain language guidelines

    Documents and videos

    Make PDFs searchable

    Convert scanned PDF pages into real text so screen readers and search engines can read them.

    Run optical character recognition using Adobe OCR

    Give images alt tags

    Include clear alt text for images and figures inside document files so screen readers can describe them.

    Guide to applying text alternatives to images in PDFs (W3C)

    Structure PDF documents

    Apply proper headings, lists, and reading order in your document editor before exporting to PDF.

    Learn document structuring best practices (WebAIM)

    Check captions

    Edit auto-generated captions on YouTube or Vimeo to guarantee accuracy for deaf viewers.

    Subtitle and caption best practices (W3C)

    Check PDF contrast

    Verify that text, icons, and charts inside your PDF files meet contrast standards.

    Learn color and contrast standards (WebAIM)

    Add transcripts

    Offer an alternative for users who prefer reading or use screen readers by adding a text-only transcript link below your videos.

    W3C guide on transcripts

    Deque has a great 4-part series on PDF accessibility that dives deep into the PDF topic. It outlines what you need to do in order for your documents to be considered accessible.

    Navigation and forms

    Indicate required fields

    Indicate required inputs using visual indicators (like *) and the required HTML attribute.

    Mark required form inputs (W3C)

    Label forms clearly

    Keep clear, permanent text labels above form fields instead of relying on disappearing placeholder text.

    Learn form field best practices

    Show active focus states

    Keep visible focus rings around active buttons and links so keyboard users can track where they are.

    Learn focus indicator best practices from Sara Soueidan

    Avoid color-only cues

    Combine color indicators with text or icons to signal errors, links, and system alerts.

    Understanding how color can impact the user experience

    By making these adjustments, you’re making sure your organization is truly open to every person in your community. If you need a hand figuring out where to start, we’re here to work alongside you.

    jimm

    August 5, 2026
    Uncategorized
    Accessibility