#CC2F32

CSS

:root {
  --persian-red: #cc2f32;
  --persian-red-rgb: 204 47 50;
  --persian-red-oklch: oklch(0.556 0.193 25.4);
}

.element {
  color: var(--persian-red);
  background-color: hsl(359 63% 49%);
  border-color: oklch(0.556 0.193 25.4);
}

Tailwind CSS v4

@theme {
  --color-persian-red: #cc2f32;
  --color-persian-red-50: #ffe1d7;
  --color-persian-red-100: #ffd0c5;
  --color-persian-red-200: #ffb4a7;
  --color-persian-red-300: #ff8d80;
  --color-persian-red-400: #fc6761;
  --color-persian-red-500: #eb3a3d;
  --color-persian-red-600: #c63434;
  --color-persian-red-700: #9f292a;
  --color-persian-red-800: #771c20;
  --color-persian-red-900: #541215;
  --color-persian-red-950: #380307;
}

SCSS

$persian-red: #cc2f32;
$persian-red-rgb: 204, 47, 50;
$persian-red-light: mix(#fff, $persian-red, 20%);
$persian-red-dark: mix(#000, $persian-red, 20%);

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