#A3618D

CSS

:root {
  --bermuda-onion: #a3618d;
  --bermuda-onion-rgb: 163 97 141;
  --bermuda-onion-oklch: oklch(0.581 0.103 340.6);
}

.element {
  color: var(--bermuda-onion);
  background-color: hsl(320 26% 51%);
  border-color: oklch(0.581 0.103 340.6);
}

Tailwind CSS v4

@theme {
  --color-bermuda-onion: #a3618d;
  --color-bermuda-onion-50: #ffeafd;
  --color-bermuda-onion-100: #ffdbf1;
  --color-bermuda-onion-200: #f5c3e0;
  --color-bermuda-onion-300: #dda3c6;
  --color-bermuda-onion-400: #c886b1;
  --color-bermuda-onion-500: #b36a9b;
  --color-bermuda-onion-600: #985a83;
  --color-bermuda-onion-700: #7a4869;
  --color-bermuda-onion-800: #59344e;
  --color-bermuda-onion-900: #3f2337;
  --color-bermuda-onion-950: #281221;
}

SCSS

$bermuda-onion: #a3618d;
$bermuda-onion-rgb: 163, 97, 141;
$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);
}