#AD5F47

CSS

:root {
  --red-cent: #ad5f47;
  --red-cent-rgb: 173 95 71;
  --red-cent-oklch: oklch(0.571 0.108 37.9);
}

.element {
  color: var(--red-cent);
  background-color: hsl(14 42% 48%);
  border-color: oklch(0.571 0.108 37.9);
}

Tailwind CSS v4

@theme {
  --color-red-cent: #ad5f47;
  --color-red-cent-50: #ffecde;
  --color-red-cent-100: #ffddcd;
  --color-red-cent-200: #fec5b2;
  --color-red-cent-300: #e8a58e;
  --color-red-cent-400: #d5876f;
  --color-red-cent-500: #c26a50;
  --color-red-cent-600: #a45b44;
  --color-red-cent-700: #844836;
  --color-red-cent-800: #623427;
  --color-red-cent-900: #45231a;
  --color-red-cent-950: #2c120b;
}

SCSS

$red-cent: #ad5f47;
$red-cent-rgb: 173, 95, 71;
$red-cent-light: mix(#fff, $red-cent, 20%);
$red-cent-dark: mix(#000, $red-cent, 20%);

.element {
  color: $red-cent;
  box-shadow: 0 0 0 2px rgba($red-cent, 0.35);
}