#AC634B

CSS

:root {
  --red-cent: #ac634b;
  --red-cent-rgb: 172 99 75;
  --red-cent-oklch: oklch(0.577 0.101 38.9);
}

.element {
  color: var(--red-cent);
  background-color: hsl(15 39% 48%);
  border-color: oklch(0.577 0.101 38.9);
}

Tailwind CSS v4

@theme {
  --color-red-cent: #ac634b;
  --color-red-cent-50: #ffecdf;
  --color-red-cent-100: #ffddce;
  --color-red-cent-200: #fbc7b3;
  --color-red-cent-300: #e5a690;
  --color-red-cent-400: #d28971;
  --color-red-cent-500: #bf6d52;
  --color-red-cent-600: #a15d46;
  --color-red-cent-700: #814a38;
  --color-red-cent-800: #603528;
  --color-red-cent-900: #44241b;
  --color-red-cent-950: #2b130c;
}

SCSS

$red-cent: #ac634b;
$red-cent-rgb: 172, 99, 75;
$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);
}