This 1 simple 600-year-old trick makes your website more accessible!
summary
Claims that the medieval rule of tincture (no metal on metal, no color on color) directly maps to modern WCAG contrast targets, quantified by measured contrast ratios. Uses heraldic blazon, historical frequency data (less than 2% of arms violate the rule), WCAG math (4.5 to 1 target), and live demos — a gradient counter showing white text vs dark text — where 5.32 passes and 1.8 fails, proving the rule yields usable luminance contrast.
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chapters (6)
- 0:00Start
- 0:49Why Is Accessibility Important
- 2:11Color Contrast
- 2:57English Heraldic Tradition
- 8:09Contrast Ratio
- 8:20The Rule of Tincture
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