Accessibility Best Practices

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3 powerful techniques for your everyday accessibility ambitions

Nothing AG
Technology experts in digital inclusion

Josua Muheim
www.nothing.ch

Wednesday, 20th of April 2022

Colours & contrasts

  • Contrast ratio of 4.5:1 or 3:1 (large text)
     
  • Colour Contrast Analyser
    ADG: Setup: Helper Tools: Colour Contrast Analyser
     
  • Many other tools available...
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Make sure that elemets are visible!

Colours & contrasts

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Colours & contrasts

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Logo Accessibility Developer Guide AD G* Created with Sketch.

Keyboard-only operability

  • Use proper interactive elements like <a href=""> and <button>
  • Use proper form controls like <input>
     
  • ADG: Knowledge: Keyboard-only
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Provide interactive control to all!

Logo Accessibility Developer Guide AD G* Created with Sketch.

Heading outlines

  • Use proper <h1> to <h6> tags to mark up headings
  • Offer meaningful hierarchy
  • Don't skip any levels!
  • Hide headings visually (if needed)
     
  • H123 Bookmarklet
    ADG: Setup: Browsers: Bookmarklets:
    h123
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Give your page a table of contents!

Logo Accessibility Developer Guide AD G* Created with Sketch.

Accessibility best practices

By Nothing

Accessibility best practices

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