#9A5391

CSS

:root {
  --bermuda-onion: #9a5391;
  --bermuda-onion-rgb: 154 83 145;
  --bermuda-onion-oklch: oklch(0.548 0.124 332);
}

.element {
  color: var(--bermuda-onion);
  background-color: hsl(308 30% 46%);
  border-color: oklch(0.548 0.124 332);
}

Tailwind CSS v4

@theme {
  --color-bermuda-onion: #9a5391;
  --color-bermuda-onion-50: #ffe9ff;
  --color-bermuda-onion-100: #ffd9f9;
  --color-bermuda-onion-200: #f6c1ea;
  --color-bermuda-onion-300: #df9fd2;
  --color-bermuda-onion-400: #c982bf;
  --color-bermuda-onion-500: #b564aa;
  --color-bermuda-onion-600: #995590;
  --color-bermuda-onion-700: #7b4473;
  --color-bermuda-onion-800: #5a3157;
  --color-bermuda-onion-900: #3f213d;
  --color-bermuda-onion-950: #281026;
}

SCSS

$bermuda-onion: #9a5391;
$bermuda-onion-rgb: 154, 83, 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);
}