#A35DA4

CSS

:root {
  --bermuda-onion: #a35da4;
  --bermuda-onion-rgb: 163 93 164;
  --bermuda-onion-oklch: oklch(0.584 0.131 326.6);
}

.element {
  color: var(--bermuda-onion);
  background-color: hsl(299 28% 50%);
  border-color: oklch(0.584 0.131 326.6);
}

Tailwind CSS v4

@theme {
  --color-bermuda-onion: #a35da4;
  --color-bermuda-onion-50: #ffe8ff;
  --color-bermuda-onion-100: #ffd9fe;
  --color-bermuda-onion-200: #f4c1f0;
  --color-bermuda-onion-300: #dd9fd9;
  --color-bermuda-onion-400: #c782c7;
  --color-bermuda-onion-500: #b264b3;
  --color-bermuda-onion-600: #975598;
  --color-bermuda-onion-700: #79447a;
  --color-bermuda-onion-800: #58315b;
  --color-bermuda-onion-900: #3e2140;
  --color-bermuda-onion-950: #271029;
}

SCSS

$bermuda-onion: #a35da4;
$bermuda-onion-rgb: 163, 93, 164;
$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);
}