WCAG Color Contrast Guide: Make Your Website Accessible
Learn WCAG color contrast requirements for accessible web design. Understand ratios, tools, and techniques to pass AA and AAA standards.
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Tags: accessibility, color, design
WCAG Color Contrast Guide: AA and AAA Requirements Color contrast is one of the most frequently failed accessibility criteria on the web, and also one of the most fixable. The Web Content Accessibility Guidelines (WCAG) define mathematically precise contrast thresholds — there's no ambiguity about whether a color combination passes or fails. This guide explains the formula, the thresholds, and how to apply them in practice. Why Contrast Matters Approximately 8% of men and 0.5% of women have some form of color vision deficiency. Many more have low-contrast sensitivity due to age, bright sunlight, or screen glare. When text color is too close in luminance to its background, it becomes hard or impossible to read for a significant portion of your users. Beyond color blindness, low-contrast…
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