#D53E55

CSS

:root {
  --flesh-and-blood: #d53e55;
  --flesh-and-blood-rgb: 213 62 85;
  --flesh-and-blood-oklch: oklch(0.591 0.187 16.5);
}

.element {
  color: var(--flesh-and-blood);
  background-color: hsl(351 64% 54%);
  border-color: oklch(0.591 0.187 16.5);
}

Tailwind CSS v4

@theme {
  --color-flesh-and-blood: #d53e55;
  --color-flesh-and-blood-50: #ffe0e1;
  --color-flesh-and-blood-100: #ffcfd0;
  --color-flesh-and-blood-200: #ffb3b5;
  --color-flesh-and-blood-300: #ff8d92;
  --color-flesh-and-blood-400: #f86877;
  --color-flesh-and-blood-500: #e73d59;
  --color-flesh-and-blood-600: #c3354c;
  --color-flesh-and-blood-700: #9d2b3c;
  --color-flesh-and-blood-800: #751d2d;
  --color-flesh-and-blood-900: #53131f;
  --color-flesh-and-blood-950: #37040f;
}

SCSS

$flesh-and-blood: #d53e55;
$flesh-and-blood-rgb: 213, 62, 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);
}