#2F1418

CSS

:root {
  --bruised-plum: #2f1418;
  --bruised-plum-rgb: 47 20 24;
  --bruised-plum-oklch: oklch(0.233 0.044 11.7);
}

.element {
  color: var(--bruised-plum);
  background-color: hsl(351 40% 13%);
  border-color: oklch(0.233 0.044 11.7);
}

Tailwind CSS v4

@theme {
  --color-bruised-plum: #2f1418;
  --color-bruised-plum-50: #fff0f1;
  --color-bruised-plum-100: #f6e2e3;
  --color-bruised-plum-200: #e7cdce;
  --color-bruised-plum-300: #cdafb1;
  --color-bruised-plum-400: #b79498;
  --color-bruised-plum-500: #a17a7e;
  --color-bruised-plum-600: #88686b;
  --color-bruised-plum-700: #6d5356;
  --color-bruised-plum-800: #503c3f;
  --color-bruised-plum-900: #38292b;
  --color-bruised-plum-950: #231719;
}

SCSS

$bruised-plum: #2f1418;
$bruised-plum-rgb: 47, 20, 24;
$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);
}