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Colour Contrast Check

Date created: January 11, 2005 Date last modified: March 30, 2009 The Colour Contrast Check Tool allows to specify a foreground and a background colour and determine if they provide enough of a contrast "when viewed by someone having color deficits or when viewed on a black and white screen"[W3C]. The tool will indicate that the colours pass the test if both the colour difference and the brightness difference exceed their threshold. It will indicate that it sort of passes if only one of the two values exceed their threshold. And finally, it'll fail to pass if neither value exceeds its threshold. The tool will also indicate if the colours pass the newer WCAG 2.0 contrast ratio formula. You can enter a three character value (eg: 036) and it'll automatically convert it to it's six character version.

http://www.snook.ca/technical/colour_contrast/colour.html

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"Snook Color Contratst Checker permet d'indiquer si la différence de contraste entre les couleurs est suffisant pour les différents types daltonisme, en précisant la conformité aux critères WCAG 2 " Alsacreation by blanchesabb Mar 9

Pour analyser le contraste entre la couleur du texte et celle de l'arrière-plan et savoir si le choix de couleur est conforme aux critères WCAG. by citeain Jun 8

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