#5F0A00

CSS

:root {
  --blood-of-zeus: #5f0a00;
  --blood-of-zeus-rgb: 95 10 0;
  --blood-of-zeus-oklch: oklch(0.312 0.118 31.9);
}

.element {
  color: var(--blood-of-zeus);
  background-color: hsl(6 100% 19%);
  border-color: oklch(0.312 0.118 31.9);
}

Tailwind CSS v4

@theme {
  --color-blood-of-zeus: #5f0a00;
  --color-blood-of-zeus-50: #ffeadf;
  --color-blood-of-zeus-100: #ffdbce;
  --color-blood-of-zeus-200: #ffc3b3;
  --color-blood-of-zeus-300: #eda18f;
  --color-blood-of-zeus-400: #db8372;
  --color-blood-of-zeus-500: #c86552;
  --color-blood-of-zeus-600: #a95646;
  --color-blood-of-zeus-700: #884538;
  --color-blood-of-zeus-800: #653129;
  --color-blood-of-zeus-900: #47211b;
  --color-blood-of-zeus-950: #2e100c;
}

SCSS

$blood-of-zeus: #5f0a00;
$blood-of-zeus-rgb: 95, 10, 0;
$blood-of-zeus-light: mix(#fff, $blood-of-zeus, 20%);
$blood-of-zeus-dark: mix(#000, $blood-of-zeus, 20%);

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