#976391

CSS

:root {
  --bermuda-onion: #976391;
  --bermuda-onion-rgb: 151 99 145;
  --bermuda-onion-oklch: oklch(0.571 0.092 330.8);
}

.element {
  color: var(--bermuda-onion);
  background-color: hsl(307 21% 49%);
  border-color: oklch(0.571 0.092 330.8);
}

Tailwind CSS v4

@theme {
  --color-bermuda-onion: #976391;
  --color-bermuda-onion-50: #ffecff;
  --color-bermuda-onion-100: #fcddf5;
  --color-bermuda-onion-200: #edc6e6;
  --color-bermuda-onion-300: #d5a6cc;
  --color-bermuda-onion-400: #be8ab8;
  --color-bermuda-onion-500: #a96fa3;
  --color-bermuda-onion-600: #8f5e89;
  --color-bermuda-onion-700: #734b6e;
  --color-bermuda-onion-800: #543652;
  --color-bermuda-onion-900: #3b2539;
  --color-bermuda-onion-950: #251424;
}

SCSS

$bermuda-onion: #976391;
$bermuda-onion-rgb: 151, 99, 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);
}