#16080D

CSS

:root {
  --noir-fiction: #16080d;
  --noir-fiction-rgb: 22 8 13;
  --noir-fiction-oklch: oklch(0.159 0.027 357.4);
}

.element {
  color: var(--noir-fiction);
  background-color: hsl(339 47% 6%);
  border-color: oklch(0.159 0.027 357.4);
}

Tailwind CSS v4

@theme {
  --color-noir-fiction: #16080d;
  --color-noir-fiction-50: #fcf2f5;
  --color-noir-fiction-100: #f0e4e7;
  --color-noir-fiction-200: #dfd0d4;
  --color-noir-fiction-300: #c4b2b7;
  --color-noir-fiction-400: #ac989e;
  --color-noir-fiction-500: #967f86;
  --color-noir-fiction-600: #7f6c72;
  --color-noir-fiction-700: #65565b;
  --color-noir-fiction-800: #4a3f43;
  --color-noir-fiction-900: #342b2e;
  --color-noir-fiction-950: #1f181b;
}

SCSS

$noir-fiction: #16080d;
$noir-fiction-rgb: 22, 8, 13;
$noir-fiction-light: mix(#fff, $noir-fiction, 20%);
$noir-fiction-dark: mix(#000, $noir-fiction, 20%);

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