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Color contrast verification tool

Calculate a measure of readability.
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To evaluate the color contrast characteristics of your desired colors, try out this tool. Note that your results are not warranteed. If you get a result that doesn't make sense to you, use another method to double-check it. (Requires JavaScript and style sheets; Works best in IE on a PC. Does not work on Macintosh.)

Enter color values

View color sample

Type of values to use:


Background color:


Foreground color:
 
 
Results of Test
 
    (should be >= 125)
 
    (should be >= 400)
 
   
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