#431B21

CSS

:root {
  --bruised-plum: #431b21;
  --bruised-plum-rgb: 67 27 33;
  --bruised-plum-oklch: oklch(0.283 0.062 12.6);
}

.element {
  color: var(--bruised-plum);
  background-color: hsl(351 43% 18%);
  border-color: oklch(0.283 0.062 12.6);
}

Tailwind CSS v4

@theme {
  --color-bruised-plum: #431b21;
  --color-bruised-plum-50: #ffeeef;
  --color-bruised-plum-100: #fce0e1;
  --color-bruised-plum-200: #eecacc;
  --color-bruised-plum-300: #d5abad;
  --color-bruised-plum-400: #c09094;
  --color-bruised-plum-500: #ab757b;
  --color-bruised-plum-600: #916368;
  --color-bruised-plum-700: #744f53;
  --color-bruised-plum-800: #56393d;
  --color-bruised-plum-900: #3c272a;
  --color-bruised-plum-950: #251518;
}

SCSS

$bruised-plum: #431b21;
$bruised-plum-rgb: 67, 27, 33;
$bruised-plum-light: mix(#fff, $bruised-plum, 20%);
$bruised-plum-dark: mix(#000, $bruised-plum, 20%);

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