#9B6591

CSS

:root {
  --bermuda-onion: #9b6591;
  --bermuda-onion-rgb: 155 101 145;
  --bermuda-onion-oklch: oklch(0.579 0.092 333.6);
}

.element {
  color: var(--bermuda-onion);
  background-color: hsl(311 21% 50%);
  border-color: oklch(0.579 0.092 333.6);
}

Tailwind CSS v4

@theme {
  --color-bermuda-onion: #9b6591;
  --color-bermuda-onion-50: #ffecff;
  --color-bermuda-onion-100: #fdddf4;
  --color-bermuda-onion-200: #eec6e4;
  --color-bermuda-onion-300: #d6a6ca;
  --color-bermuda-onion-400: #c08ab5;
  --color-bermuda-onion-500: #ab6ea0;
  --color-bermuda-onion-600: #905e87;
  --color-bermuda-onion-700: #744b6c;
  --color-bermuda-onion-800: #553651;
  --color-bermuda-onion-900: #3b2538;
  --color-bermuda-onion-950: #251323;
}

SCSS

$bermuda-onion: #9b6591;
$bermuda-onion-rgb: 155, 101, 145;
$bermuda-onion-light: mix(#fff, $bermuda-onion, 20%);
$bermuda-onion-dark: mix(#000, $bermuda-onion, 20%);

.element {
  color: $bermuda-onion;
  box-shadow: 0 0 0 2px rgba($bermuda-onion, 0.35);
}