#C94751

CSS

:root {
  --flesh-and-blood: #c94751;
  --flesh-and-blood-rgb: 201 71 81;
  --flesh-and-blood-oklch: oklch(0.58 0.165 19.5);
}

.element {
  color: var(--flesh-and-blood);
  background-color: hsl(355 55% 53%);
  border-color: oklch(0.58 0.165 19.5);
}

Tailwind CSS v4

@theme {
  --color-flesh-and-blood: #c94751;
  --color-flesh-and-blood-50: #ffe3e0;
  --color-flesh-and-blood-100: #ffd3d0;
  --color-flesh-and-blood-200: #ffb8b5;
  --color-flesh-and-blood-300: #ff9392;
  --color-flesh-and-blood-400: #f07176;
  --color-flesh-and-blood-500: #de4c58;
  --color-flesh-and-blood-600: #bb414b;
  --color-flesh-and-blood-700: #97343c;
  --color-flesh-and-blood-800: #70242d;
  --color-flesh-and-blood-900: #4f181e;
  --color-flesh-and-blood-950: #34080e;
}

SCSS

$flesh-and-blood: #c94751;
$flesh-and-blood-rgb: 201, 71, 81;
$flesh-and-blood-light: mix(#fff, $flesh-and-blood, 20%);
$flesh-and-blood-dark: mix(#000, $flesh-and-blood, 20%);

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