#34002B

CSS

:root {
  --dark-sanctuary: #34002b;
  --dark-sanctuary-rgb: 52 0 43;
  --dark-sanctuary-oklch: oklch(0.222 0.098 336.8);
}

.element {
  color: var(--dark-sanctuary);
  background-color: hsl(310 100% 10%);
  border-color: oklch(0.222 0.098 336.8);
}

Tailwind CSS v4

@theme {
  --color-dark-sanctuary: #34002b;
  --color-dark-sanctuary-50: #ffebff;
  --color-dark-sanctuary-100: #ffdcf3;
  --color-dark-sanctuary-200: #f1c5e2;
  --color-dark-sanctuary-300: #d9a4c8;
  --color-dark-sanctuary-400: #c488b4;
  --color-dark-sanctuary-500: #af6c9e;
  --color-dark-sanctuary-600: #945c86;
  --color-dark-sanctuary-700: #77496b;
  --color-dark-sanctuary-800: #573550;
  --color-dark-sanctuary-900: #3d2438;
  --color-dark-sanctuary-950: #261322;
}

SCSS

$dark-sanctuary: #34002b;
$dark-sanctuary-rgb: 52, 0, 43;
$dark-sanctuary-light: mix(#fff, $dark-sanctuary, 20%);
$dark-sanctuary-dark: mix(#000, $dark-sanctuary, 20%);

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