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Snook's Colour Contrast Check provides a comprehensive check of whether a particular choice of foreground and background colours meets WCAG 2.2 standards for brightness difference, colour difference and contrast ratio. You can find the text colour and background colour as a hexadecimal value by using the "Inspect element" function that most ...
It is best to choose background colors that offer sufficient contrast in relation to text and blue links, which is also the color of references, both of which are very common in most articles. Use the WCAG link contrast checker to ensure that the chosen background color offers the recommended WCAG AA level of contrast against normal text ...
For accessibility, WCAG 2.0 AA guidelines require a contrast ratio of 3 or larger for large text, and 4.5 or larger for normal sized text. In the default mode, color2 and color3 are white and black, and the selected color pair will always have a contrast ratio greater than 4.58.
Colour Contrast Check G18: Ensuring that a contrast ratio of at least 4.5:1 exists between text (and images of text) and background behind the text Index of Color Contrast Samples
Refrain from implementing coloured links that may impede user ability to distinguish links from regular text, or colour links for purely aesthetic reasons. See the guides to editing articles for accessibility at contrast , accessibility and navbox colors .
To use named CSS colors for text on a white background, refer to Wikipedia:Manual of Style/Accessibility/CSS colors for text on white for recommended colors. For other usage, here is a selection of tools that can be used to check that the contrast is correct:
For text against a white background, the following CSS colors do not meet the minimum contrast ratio (4.5:1) specified by Web Content Accessibility Guidelines (WCAG) 2.0 Level AA. Contrast [ d ] Color sample
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