What are the WCAG principles relevant to email?
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Your emails aren't websites, but they're built the same way. So WCAG (Web Content Accessibility Guidelines) applies directly to email, too.
WCAG organizes accessibility around four principles. Most people call them POUR: Perceivable, Operable, Understandable, reliable. Here's what each means for your emails:
Perceivable: Readers must actually perceive the content. That means alt text for images, sufficient color contrast, and captions if you've embedded video. If someone's color blind or using a screen reader, they still get the message. Operable: Readers must be able to interact with your email. Links need keyboard navigation, buttons need sufficient tap targets, and you can't build time limits into your content. Understandable: Your content has to make sense. Clear language, consistent layout, and predictable behavior all help here. reliable: Your email works across assistive technologies. That's valid HTML, proper semantic tags, and ARIA attributes when they're needed.
These aren't abstract rules. They're the difference between an accessible email and one that locks people out. Check your alt text and email structure first. Those catch most WCAG gaps.
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