#D04554

CSS

:root {
  --flesh-and-blood: #d04554;
  --flesh-and-blood-rgb: 208 69 84;
  --flesh-and-blood-oklch: oklch(0.589 0.174 18.2);
}

.element {
  color: var(--flesh-and-blood);
  background-color: hsl(354 60% 54%);
  border-color: oklch(0.589 0.174 18.2);
}

Tailwind CSS v4

@theme {
  --color-flesh-and-blood: #d04554;
  --color-flesh-and-blood-50: #ffe2e0;
  --color-flesh-and-blood-100: #ffd1d0;
  --color-flesh-and-blood-200: #ffb6b5;
  --color-flesh-and-blood-300: #ff9192;
  --color-flesh-and-blood-400: #f46d76;
  --color-flesh-and-blood-500: #e24658;
  --color-flesh-and-blood-600: #bf3d4b;
  --color-flesh-and-blood-700: #99303c;
  --color-flesh-and-blood-800: #72212d;
  --color-flesh-and-blood-900: #51161e;
  --color-flesh-and-blood-950: #35060e;
}

SCSS

$flesh-and-blood: #d04554;
$flesh-and-blood-rgb: 208, 69, 84;
$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);
}