Pair
#1a1a1a on #ffffff
Result
21:1 (AAA pass)
Design Tools
Check WCAG contrast for many foreground/background pairs at once. See AA/AAA levels and text previews—useful for design-system audits, brand-color batches, and accessibility reviews.
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设计配色
颜色配对
检查结果
添加颜色配对后显示批量对比度结果。
Pair
#1a1a1a on #ffffff
Result
21:1 (AAA pass)
AA needs at least 4.5:1 for normal text and 3:1 for large text. AAA is stricter: 7:1 normal and 4.5:1 large.
This tool checks many pairs in parallel. The single-pair tool is better for fine-tuning one foreground and background.
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