Effective Alt Text for Image Accessibility

Oct 14, 2024

HTTP 203: Writing Good Alt Text

Introduction

  • Episode focuses on writing effective alt text for images.
  • Discussion between DevRel professionals on the challenges and nuances of creating alt text.

Importance of Alt Text

  • Alt text provides image context for users who can't view them.
  • Not every detail of an image needs to be described in alt text.

Context Matters

  • Alt text should be determined based on how the image will be used.
  • Examples:
    • If an article is about businesses, alt text could focus on hotel fronts.
    • If about bikes, focus shifts to a city bike customer cycling.

When to Use Empty Alt Text

  • Avoid redundancy if the caption already describes the image fully.
  • An empty alt attribute is better than no alt attribute as it indicates consideration.

Emotional Content

  • Emotion in images can guide alt text creation.
  • Example: Jake Archibald hiding behind a plant could convey silliness.
  • Consult accessibility experts for guidance.

Judging Images for Alt Text

  • Some images may not require alt text if they lack emotional or significant context.
  • Consider what the image conveys beyond a standard headshot or portrait.
    • E.g., cool sunglasses, a silly hat, or an unusual expression might deserve alt.

Sensitive Contexts

  • Consider the context such as race, speaker's personal experience, or diversity in alt text.
  • Consult with the speaker on how to frame sensitive contexts in alt text.

Inclusivity and Representation

  • Acknowledge industry trends like including pronouns in profiles.
  • Visual presentation might matter depending on talk context.

Conclusion

  • Alt text should be contextually relevant and emotionally descriptive when necessary.
  • Encourage consistent writing of alt text to enhance accessibility.

Final Note

  • Emphasize the importance of alt text for accessibility and context.