#75325A

CSS

:root {
  --passionate-plum: #75325a;
  --passionate-plum-rgb: 117 50 90;
  --passionate-plum-oklch: oklch(0.422 0.107 345.8);
}

.element {
  color: var(--passionate-plum);
  background-color: hsl(324 40% 33%);
  border-color: oklch(0.422 0.107 345.8);
}

Tailwind CSS v4

@theme {
  --color-passionate-plum: #75325a;
  --color-passionate-plum-50: #ffe9fb;
  --color-passionate-plum-100: #ffdaee;
  --color-passionate-plum-200: #f8c2dc;
  --color-passionate-plum-300: #e1a1c1;
  --color-passionate-plum-400: #cc84ac;
  --color-passionate-plum-500: #b86795;
  --color-passionate-plum-600: #9b587e;
  --color-passionate-plum-700: #7d4665;
  --color-passionate-plum-800: #5c334c;
  --color-passionate-plum-900: #402234;
  --color-passionate-plum-950: #291120;
}

SCSS

$passionate-plum: #75325a;
$passionate-plum-rgb: 117, 50, 90;
$passionate-plum-light: mix(#fff, $passionate-plum, 20%);
$passionate-plum-dark: mix(#000, $passionate-plum, 20%);

.element {
  color: $passionate-plum;
  box-shadow: 0 0 0 2px rgba($passionate-plum, 0.35);
}