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Color contrast (WCAG)

Use #RGB or #RRGGBB; ratio uses WCAG 2.1 relative luminance.

Foreground / text

Background

Sample body text

Secondary line

Contrast: 17.72 : 1
WCAG AA（正文）: Pass (≥ 4.5:1)
WCAG AA（大字）: Pass (≥ 3:1)
WCAG AAA（正文）: Pass (≥ 7:1)

Large text ≈ 18pt+ or 14pt+ bold; informational only.