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Design Accessibly Resources
List of resources and references used in my design accessibly talks.
For accessibility issues that can be detected in the code, including color contrast:
- Google dev tool: Lighthouse plugin for Chrome includes accessibility tests.
- WebAIM Accessibility evaluation tool: WAVE, Chrome plugin. View the contrast tab. Shows only contrast issues. Includes color contrast checker you can use to find a combination of colors that does pass.
When creating your visual UI style guideline, check the color codes (in hexadecimal) for text on a background and make sure they pass the minimum WCAG2.0 AA guideline:
- WebAIM Color Contrast Checker
- Desktop tools available on Macs and PCs that you can use to check codes in hexadecimal or RGB: Color Contrast Analyser (CCA)
- Analyze combinations from a color palette - shows which combinations meet WCAG 2.0 guidelines. Color Palette Accessibility Evaluator
- Chrome plugin: Color Contrast Analyser Test color contrast for text when using photographic backgrounds.
Show how differently sighted individuals may be viewing your web or mobile apps.
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No Coffee Vision Simulator. Can view web pages with simulations for low vision and color vision deficiencies.
Color vision deficiency simulators:
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Color therapy glasses which come in many colors try: red, or purple lens.
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Red-blue(cyan) anaglyph 3D paper glasses. Close one eye.
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Answer Buzzers, Learning Resources. Brightly colored buttons that have different sounds. (Button Colors: blue orange, green magenta) can be used in demos for color vision deficiencies with goggles or app simulators.
Color Vision Simulator (CVSimulator) by Kazunori Asada shows deuteranopia, protanopia, and tritanopia:
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Web Accessibility Initiative WAI Get Startedfrom the W3C
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Subset of WCAG 2.0 applies to mobile apps. Mobile Techniques
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Mobile app Developers: use the Developer's accessibility APIs and documentation for Android, and iOS.
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Look no hands Michelle Vandy, Designer
- Everything About Color Contrast and Why You Should Rethink it by Cathy O'Connor.