#DA3B35

CSS

:root {
  --blood-of-my-enemies: #da3b35;
  --blood-of-my-enemies-rgb: 218 59 53;
  --blood-of-my-enemies-oklch: oklch(0.591 0.197 27.3);
}

.element {
  color: var(--blood-of-my-enemies);
  background-color: hsl(2 69% 53%);
  border-color: oklch(0.591 0.197 27.3);
}

Tailwind CSS v4

@theme {
  --color-blood-of-my-enemies: #da3b35;
  --color-blood-of-my-enemies-50: #ffe1d5;
  --color-blood-of-my-enemies-100: #ffcfc2;
  --color-blood-of-my-enemies-200: #ffb3a3;
  --color-blood-of-my-enemies-300: #ff8d7b;
  --color-blood-of-my-enemies-400: #fd665a;
  --color-blood-of-my-enemies-500: #ec3834;
  --color-blood-of-my-enemies-600: #c7322d;
  --color-blood-of-my-enemies-700: #a12824;
  --color-blood-of-my-enemies-800: #781b1c;
  --color-blood-of-my-enemies-900: #551212;
  --color-blood-of-my-enemies-950: #390305;
}

SCSS

$blood-of-my-enemies: #da3b35;
$blood-of-my-enemies-rgb: 218, 59, 53;
$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);
}