#5B0F00

CSS

:root {
  --blood-of-zeus: #5b0f00;
  --blood-of-zeus-rgb: 91 15 0;
  --blood-of-zeus-oklch: oklch(0.308 0.111 33.9);
}

.element {
  color: var(--blood-of-zeus);
  background-color: hsl(10 100% 18%);
  border-color: oklch(0.308 0.111 33.9);
}

Tailwind CSS v4

@theme {
  --color-blood-of-zeus: #5b0f00;
  --color-blood-of-zeus-50: #ffebe0;
  --color-blood-of-zeus-100: #ffdccf;
  --color-blood-of-zeus-200: #ffc4b4;
  --color-blood-of-zeus-300: #eaa390;
  --color-blood-of-zeus-400: #d78672;
  --color-blood-of-zeus-500: #c46853;
  --color-blood-of-zeus-600: #a65947;
  --color-blood-of-zeus-700: #854739;
  --color-blood-of-zeus-800: #633329;
  --color-blood-of-zeus-900: #46221c;
  --color-blood-of-zeus-950: #2d110c;
}

SCSS

$blood-of-zeus: #5b0f00;
$blood-of-zeus-rgb: 91, 15, 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);
}