Color contrast refers to the difference between the brightness of the background color and foreground color of digital content. Black text on a white background is very high contrast; light grey text ...
An accessibility checker tool for validating the color contrast based on WCAG 2.0 and WCAG 2.1 standard. The formula (L1/L2) for contrast is based on [ISO-9241-3] and [ANSI-HFES-100-1988 ...
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