Roman Empire Red

CSS

:root {
  --roman-empire-red: #ee1111;
  --roman-empire-red-rgb: 238 17 17;
  --roman-empire-red-oklch: oklch(0.6 0.24 28.7);
}

.element {
  color: var(--roman-empire-red);
  background-color: hsl(0 87% 50%);
  border-color: oklch(0.6 0.24 28.7);
}

Tailwind CSS v4

@theme {
  --color-roman-empire-red: #ee1111;
  --color-roman-empire-red-50: #ffdccc;
  --color-roman-empire-red-100: #ffcab7;
  --color-roman-empire-red-200: #ffab94;
  --color-roman-empire-red-300: #ff8068;
  --color-roman-empire-red-400: #ff5042;
  --color-roman-empire-red-500: #ff0000;
  --color-roman-empire-red-600: #d70001;
  --color-roman-empire-red-700: #ad0004;
  --color-roman-empire-red-800: #820009;
  --color-roman-empire-red-900: #5c0206;
  --color-roman-empire-red-950: #3e0000;
}

SCSS

$roman-empire-red: #ee1111;
$roman-empire-red-rgb: 238, 17, 17;
$roman-empire-red-light: mix(#fff, $roman-empire-red, 20%);
$roman-empire-red-dark: mix(#000, $roman-empire-red, 20%);

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