#D83A55

CSS

:root {
  --flesh-and-blood: #d83a55;
  --flesh-and-blood-rgb: 216 58 85;
  --flesh-and-blood-oklch: oklch(0.592 0.193 16);
}

.element {
  color: var(--flesh-and-blood);
  background-color: hsl(350 67% 54%);
  border-color: oklch(0.592 0.193 16);
}

Tailwind CSS v4

@theme {
  --color-flesh-and-blood: #d83a55;
  --color-flesh-and-blood-50: #ffe0e0;
  --color-flesh-and-blood-100: #ffced0;
  --color-flesh-and-blood-200: #ffb2b5;
  --color-flesh-and-blood-300: #ff8b92;
  --color-flesh-and-blood-400: #fb6477;
  --color-flesh-and-blood-500: #ea3759;
  --color-flesh-and-blood-600: #c5314b;
  --color-flesh-and-blood-700: #9f273c;
  --color-flesh-and-blood-800: #761a2d;
  --color-flesh-and-blood-900: #54111f;
  --color-flesh-and-blood-950: #38030e;
}

SCSS

$flesh-and-blood: #d83a55;
$flesh-and-blood-rgb: 216, 58, 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);
}