#C84853

CSS

:root {
  --flesh-and-blood: #c84853;
  --flesh-and-blood-rgb: 200 72 83;
  --flesh-and-blood-oklch: oklch(0.58 0.163 18.8);
}

.element {
  color: var(--flesh-and-blood);
  background-color: hsl(355 54% 53%);
  border-color: oklch(0.58 0.163 18.8);
}

Tailwind CSS v4

@theme {
  --color-flesh-and-blood: #c84853;
  --color-flesh-and-blood-50: #ffe3e1;
  --color-flesh-and-blood-100: #ffd3d1;
  --color-flesh-and-blood-200: #ffb8b6;
  --color-flesh-and-blood-300: #ff9493;
  --color-flesh-and-blood-400: #ef7278;
  --color-flesh-and-blood-500: #dd4d5a;
  --color-flesh-and-blood-600: #ba424d;
  --color-flesh-and-blood-700: #96353d;
  --color-flesh-and-blood-800: #70252e;
  --color-flesh-and-blood-900: #4f191f;
  --color-flesh-and-blood-950: #34080f;
}

SCSS

$flesh-and-blood: #c84853;
$flesh-and-blood-rgb: 200, 72, 83;
$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);
}