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To test color contrast, you need the exact value for each color used. If testing colors that are on a website, try a color picker browser add-on to find this value. For desktop applications, free software such as Paciello Group's free Colour Contrast Analyser may help.  |
- Graph design, color, and accessibility
Make sure that graphs and other images do not rely solely on color to convey information. If necessary, use online tools such as Coblis or Sim Daltonism to test your images.
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