Colour Contrast Check - snook.ca
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. 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.