About Checkpoint 2.2
This Widget calculates the brightness- and color-difference of two colors and thus checks the Checkpoint 2.2 of the Web Content Accessibility Guidelines 1.0. The calculations serve the mathematical formulas as described in the document Techniques For Accessibility Evaluation And Repair Tools of the W3C in the paragraph Technique 2.2.1.
The values of both colors can be defined either by input fields, or you can select them comfortably with color fields. For the input, you can select between the formats hexadecimal (3-and 6-figure) and RGB. This choice takes place at the back of the widget and is saved as a property of the widgets constantly.
The widget includes the following languages:
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