#5E0F11

CSS

:root {
  --sacramental-red: #5e0f11;
  --sacramental-red-rgb: 94 15 17;
  --sacramental-red-oklch: oklch(0.316 0.111 25.3);
}

.element {
  color: var(--sacramental-red);
  background-color: hsl(358 72% 21%);
  border-color: oklch(0.316 0.111 25.3);
}

Tailwind CSS v4

@theme {
  --color-sacramental-red: #5e0f11;
  --color-sacramental-red-50: #ffeae4;
  --color-sacramental-red-100: #ffdbd4;
  --color-sacramental-red-200: #ffc3bb;
  --color-sacramental-red-300: #eba298;
  --color-sacramental-red-400: #d8847d;
  --color-sacramental-red-500: #c5665f;
  --color-sacramental-red-600: #a75751;
  --color-sacramental-red-700: #864541;
  --color-sacramental-red-800: #633230;
  --color-sacramental-red-900: #462220;
  --color-sacramental-red-950: #2d1110;
}

SCSS

$sacramental-red: #5e0f11;
$sacramental-red-rgb: 94, 15, 17;
$sacramental-red-light: mix(#fff, $sacramental-red, 20%);
$sacramental-red-dark: mix(#000, $sacramental-red, 20%);

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