#DF3233

CSS

:root {
  --blood-of-my-enemies: #df3233;
  --blood-of-my-enemies-rgb: 223 50 51;
  --blood-of-my-enemies-oklch: oklch(0.592 0.209 26.2);
}

.element {
  color: var(--blood-of-my-enemies);
  background-color: hsl(360 73% 54%);
  border-color: oklch(0.592 0.209 26.2);
}

Tailwind CSS v4

@theme {
  --color-blood-of-my-enemies: #df3233;
  --color-blood-of-my-enemies-50: #ffdfd4;
  --color-blood-of-my-enemies-100: #ffcec1;
  --color-blood-of-my-enemies-200: #ffb1a2;
  --color-blood-of-my-enemies-300: #ff8979;
  --color-blood-of-my-enemies-400: #ff6059;
  --color-blood-of-my-enemies-500: #f12c31;
  --color-blood-of-my-enemies-600: #cc292b;
  --color-blood-of-my-enemies-700: #a42122;
  --color-blood-of-my-enemies-800: #7b151b;
  --color-blood-of-my-enemies-900: #570e11;
  --color-blood-of-my-enemies-950: #3a0004;
}

SCSS

$blood-of-my-enemies: #df3233;
$blood-of-my-enemies-rgb: 223, 50, 51;
$blood-of-my-enemies-light: mix(#fff, $blood-of-my-enemies, 20%);
$blood-of-my-enemies-dark: mix(#000, $blood-of-my-enemies, 20%);

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