#DB0007

CSS

:root {
  --redsurrection: #db0007;
  --redsurrection-rgb: 219 0 7;
  --redsurrection-oklch: oklch(0.56 0.229 28.7);
}

.element {
  color: var(--redsurrection);
  background-color: hsl(358 100% 43%);
  border-color: oklch(0.56 0.229 28.7);
}

Tailwind CSS v4

@theme {
  --color-redsurrection: #db0007;
  --color-redsurrection-50: #ffddce;
  --color-redsurrection-100: #ffcbb9;
  --color-redsurrection-200: #ffad98;
  --color-redsurrection-300: #ff836c;
  --color-redsurrection-400: #ff5748;
  --color-redsurrection-500: #fa060d;
  --color-redsurrection-600: #d31311;
  --color-redsurrection-700: #aa110e;
  --color-redsurrection-800: #7f080e;
  --color-redsurrection-900: #5a0609;
  --color-redsurrection-950: #3d0000;
}

SCSS

$redsurrection: #db0007;
$redsurrection-rgb: 219, 0, 7;
$redsurrection-light: mix(#fff, $redsurrection, 20%);
$redsurrection-dark: mix(#000, $redsurrection, 20%);

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