![]() Verdict:Ĭombining the colour contrast check and colour blindness simulator in one app seems an odd decision - they'd make more sense as separate programs - but both functions are useful, and overall Colour Contrast Analyser is a handy accessibility tool. Free online tool for evaluating color contrast according to the Web Content Accessibility Guidelines (WCAG). Make your choice, choose a condition - Protanopia, Deuteranopia, Tritanopia, Cataracts, Greyscale, Invert - and the simulator updates to show how its effects. The second function simulates various colour blindness and other visual conditions, helping you understand how some users might see your work.Ĭolour Contrast Analyser can work with an image file, program window or the entire screen. The executable included is for use on UNIX - based systems, but the source can easily be compiled for. You can optionally use RGB or HSV sliders to adjust problematic colours until they work. Colour Contrast Analyser v.1.0 This is a C++ program written to determine whether two colours meet the W3C recommendation for the contrast ratios. Just enter a foreground and background colour and separate verdicts are displayed for large and small text. You don't need to understand the low-level technicalities to find this useful. ![]() The program gives you a pass/fail assessment using WCAG 2.0 color contrast success criteria. The simplest allows checking text foreground and background colours to determine its legibility. Colour Contrast Analyser is an unusual accessibility tool with a couple of useful functions.
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