#CC4450

CSS

:root {
  --flesh-and-blood: #cc4450;
  --flesh-and-blood-rgb: 204 68 80;
  --flesh-and-blood-oklch: oklch(0.581 0.171 19.3);
}

.element {
  color: var(--flesh-and-blood);
  background-color: hsl(355 57% 53%);
  border-color: oklch(0.581 0.171 19.3);
}

Tailwind CSS v4

@theme {
  --color-flesh-and-blood: #cc4450;
  --color-flesh-and-blood-50: #ffe3e0;
  --color-flesh-and-blood-100: #ffd2cf;
  --color-flesh-and-blood-200: #ffb7b4;
  --color-flesh-and-blood-300: #ff9291;
  --color-flesh-and-blood-400: #f26e75;
  --color-flesh-and-blood-500: #e14856;
  --color-flesh-and-blood-600: #be3e4a;
  --color-flesh-and-blood-700: #99323b;
  --color-flesh-and-blood-800: #72222c;
  --color-flesh-and-blood-900: #50171e;
  --color-flesh-and-blood-950: #35070e;
}

SCSS

$flesh-and-blood: #cc4450;
$flesh-and-blood-rgb: 204, 68, 80;
$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);
}