#CB4A53

CSS

:root {
  --flesh-and-blood: #cb4a53;
  --flesh-and-blood-rgb: 203 74 83;
  --flesh-and-blood-oklch: oklch(0.587 0.164 19.7);
}

.element {
  color: var(--flesh-and-blood);
  background-color: hsl(356 55% 54%);
  border-color: oklch(0.587 0.164 19.7);
}

Tailwind CSS v4

@theme {
  --color-flesh-and-blood: #cb4a53;
  --color-flesh-and-blood-50: #ffe3e0;
  --color-flesh-and-blood-100: #ffd3d0;
  --color-flesh-and-blood-200: #ffb8b5;
  --color-flesh-and-blood-300: #ff9492;
  --color-flesh-and-blood-400: #ef7176;
  --color-flesh-and-blood-500: #dd4d58;
  --color-flesh-and-blood-600: #bb424b;
  --color-flesh-and-blood-700: #96353c;
  --color-flesh-and-blood-800: #70252d;
  --color-flesh-and-blood-900: #4f191e;
  --color-flesh-and-blood-950: #34080e;
}

SCSS

$flesh-and-blood: #cb4a53;
$flesh-and-blood-rgb: 203, 74, 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);
}