/contrast — WCAG Contrast Checker

Usage

/contrast [foreground] [background]

Output

Calculate relative luminance and contrast ratio. Report:

• Ratio (e.g., 7.2:1)
• Normal text AA (4.5:1): PASS/FAIL
• Normal text AAA (7:1): PASS/FAIL
• Large text AA (3:1): PASS/FAIL
• Large text AAA (4.5:1): PASS/FAIL
• UI components (3:1): PASS/FAIL

If any check fails, suggest the nearest color that would pass.