#AA644F

CSS

:root {
  --red-cent: #aa644f;
  --red-cent-rgb: 170 100 79;
  --red-cent-oklch: oklch(0.577 0.096 37.5);
}

.element {
  color: var(--red-cent);
  background-color: hsl(14 37% 49%);
  border-color: oklch(0.577 0.096 37.5);
}

Tailwind CSS v4

@theme {
  --color-red-cent: #aa644f;
  --color-red-cent-50: #ffede1;
  --color-red-cent-100: #ffded0;
  --color-red-cent-200: #fac7b6;
  --color-red-cent-300: #e3a793;
  --color-red-cent-400: #d08a75;
  --color-red-cent-500: #bc6e57;
  --color-red-cent-600: #9f5e4a;
  --color-red-cent-700: #804b3b;
  --color-red-cent-800: #5f362b;
  --color-red-cent-900: #43251d;
  --color-red-cent-950: #2b130d;
}

SCSS

$red-cent: #aa644f;
$red-cent-rgb: 170, 100, 79;
$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);
}