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RGBHex

crimson

#DC143C

crimsonCSS named color.

Formats

Open #DC143C in the converter →

Contrast & legibility

Text on white4.99:1 AA ✓
Text on black4.21:1 AA ✗

WCAG 2.2 AA requires 4.5:1 for normal text and 3:1 for large text. Check any pair →

Tints & shades

An 11-stop OKLCH ramp through crimson (the same engine as the theme builder). Click any stop to open its page.

Harmonies

Explore all harmonies for #DC143C

Color-blindness preview

#5c553b

Protanopia

#8b7e35

Deuteranopia

#f20029

Tritanopia

#6f6f6f

Achromatopsia

How crimson appears to viewers with each color-vision deficiency. Full simulator →

About crimson

#DC143C is crimson, a css named color. This page shows its rgb(220, 20, 60) / hsl(348, 83.33%, 47.06%) / oklch(0.5712 0.2219 20.09) values, WCAG contrast against black and white, an OKLCH tint-and-shade ramp, and complementary, analogous, and triadic harmonies — all computed in perceptually-uniform OKLCH.