#C74954

CSS

:root {
  --flesh-and-blood: #c74954;
  --flesh-and-blood-rgb: 199 73 84;
  --flesh-and-blood-oklch: oklch(0.58 0.16 18.6);
}

.element {
  color: var(--flesh-and-blood);
  background-color: hsl(355 53% 53%);
  border-color: oklch(0.58 0.16 18.6);
}

Tailwind CSS v4

@theme {
  --color-flesh-and-blood: #c74954;
  --color-flesh-and-blood-50: #ffe4e2;
  --color-flesh-and-blood-100: #ffd3d1;
  --color-flesh-and-blood-200: #ffb9b7;
  --color-flesh-and-blood-300: #ff9594;
  --color-flesh-and-blood-400: #ee7279;
  --color-flesh-and-blood-500: #dc4e5b;
  --color-flesh-and-blood-600: #ba434e;
  --color-flesh-and-blood-700: #95363e;
  --color-flesh-and-blood-800: #6f262e;
  --color-flesh-and-blood-900: #4e191f;
  --color-flesh-and-blood-950: #34090f;
}

SCSS

$flesh-and-blood: #c74954;
$flesh-and-blood-rgb: 199, 73, 84;
$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);
}