#C94757

CSS

:root {
  --flesh-and-blood: #c94757;
  --flesh-and-blood-rgb: 201 71 87;
  --flesh-and-blood-oklch: oklch(0.581 0.165 16.7);
}

.element {
  color: var(--flesh-and-blood);
  background-color: hsl(353 55% 53%);
  border-color: oklch(0.581 0.165 16.7);
}

Tailwind CSS v4

@theme {
  --color-flesh-and-blood: #c94757;
  --color-flesh-and-blood-50: #ffe3e3;
  --color-flesh-and-blood-100: #ffd2d2;
  --color-flesh-and-blood-200: #ffb8b9;
  --color-flesh-and-blood-300: #ff9396;
  --color-flesh-and-blood-400: #ef707b;
  --color-flesh-and-blood-500: #dd4b5e;
  --color-flesh-and-blood-600: #bb4150;
  --color-flesh-and-blood-700: #963440;
  --color-flesh-and-blood-800: #702430;
  --color-flesh-and-blood-900: #4f1820;
  --color-flesh-and-blood-950: #340810;
}

SCSS

$flesh-and-blood: #c94757;
$flesh-and-blood-rgb: 201, 71, 87;
$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);
}