#C54B55

CSS

:root {
  --flesh-and-blood: #c54b55;
  --flesh-and-blood-rgb: 197 75 85;
  --flesh-and-blood-oklch: oklch(0.579 0.156 18.6);
}

.element {
  color: var(--flesh-and-blood);
  background-color: hsl(355 51% 53%);
  border-color: oklch(0.579 0.156 18.6);
}

Tailwind CSS v4

@theme {
  --color-flesh-and-blood: #c54b55;
  --color-flesh-and-blood-50: #ffe4e2;
  --color-flesh-and-blood-100: #ffd4d2;
  --color-flesh-and-blood-200: #ffbab8;
  --color-flesh-and-blood-300: #fd9695;
  --color-flesh-and-blood-400: #ec747a;
  --color-flesh-and-blood-500: #da515d;
  --color-flesh-and-blood-600: #b8454f;
  --color-flesh-and-blood-700: #94373f;
  --color-flesh-and-blood-800: #6e272f;
  --color-flesh-and-blood-900: #4e1a20;
  --color-flesh-and-blood-950: #330a0f;
}

SCSS

$flesh-and-blood: #c54b55;
$flesh-and-blood-rgb: 197, 75, 85;
$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);
}