#A55A9A

CSS

:root {
  --bermuda-onion: #a55a9a;
  --bermuda-onion-rgb: 165 90 154;
  --bermuda-onion-oklch: oklch(0.577 0.128 332.7);
}

.element {
  color: var(--bermuda-onion);
  background-color: hsl(309 29% 50%);
  border-color: oklch(0.577 0.128 332.7);
}

Tailwind CSS v4

@theme {
  --color-bermuda-onion: #a55a9a;
  --color-bermuda-onion-50: #ffe8ff;
  --color-bermuda-onion-100: #ffd8f9;
  --color-bermuda-onion-200: #f7c0ea;
  --color-bermuda-onion-300: #e09ed2;
  --color-bermuda-onion-400: #cb81bf;
  --color-bermuda-onion-500: #b763ab;
  --color-bermuda-onion-600: #9a5490;
  --color-bermuda-onion-700: #7c4374;
  --color-bermuda-onion-800: #5b3057;
  --color-bermuda-onion-900: #40213d;
  --color-bermuda-onion-950: #281026;
}

SCSS

$bermuda-onion: #a55a9a;
$bermuda-onion-rgb: 165, 90, 154;
$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);
}