#AD634C

CSS

:root {
  --red-cent: #ad634c;
  --red-cent-rgb: 173 99 76;
  --red-cent-oklch: oklch(0.578 0.102 38);
}

.element {
  color: var(--red-cent);
  background-color: hsl(14 39% 49%);
  border-color: oklch(0.578 0.102 38);
}

Tailwind CSS v4

@theme {
  --color-red-cent: #ad634c;
  --color-red-cent-50: #ffece0;
  --color-red-cent-100: #ffddcf;
  --color-red-cent-200: #fcc6b4;
  --color-red-cent-300: #e6a690;
  --color-red-cent-400: #d38972;
  --color-red-cent-500: #bf6c53;
  --color-red-cent-600: #a25c47;
  --color-red-cent-700: #824a38;
  --color-red-cent-800: #613529;
  --color-red-cent-900: #44241b;
  --color-red-cent-950: #2c130c;
}

SCSS

$red-cent: #ad634c;
$red-cent-rgb: 173, 99, 76;
$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);
}