#D21F58
≈ crimson · rgb(210, 31, 88)
Color formats
HEX#D21F58
RGBrgb(210, 31, 88)
HSLhsl(341, 74%, 47%)
HSVhsv(341, 85%, 82%)
OKLCHoklch(56% 0.21 10)
CMYKcmyk(0%, 85%, 58%, 18%)
Contrast & accessibility
On white5.15:1AA pass
On black4.08:1below AA
Best text color#FFFFFF
Nearest CSS name: crimson
Copy-ready code
CSS custom properties
:root {
--crimson: #d21f58;
--crimson-rgb: 210 31 88;
--crimson-oklch: oklch(56% 0.21 10);
}The space-separated triple lets you set alpha without a second variable:
background: rgb(var(--crimson-rgb) / 40%);
Tailwind (arbitrary value)
bg-[#d21f58] text-[#d21f58] border-[#d21f58]
Shades & tints
Color harmonies
About this color
#D21F58 is a color with the RGB value rgb(210, 31, 88). Its closest CSS named color is "crimson". On this page you'll find every format (HEX, RGB, HSL, HSV, OKLCH, CMYK), WCAG contrast against white and black, a full 50–950 shade scale, and complementary, analogous and triadic harmonies — each linking to its own color page.