#C73720

CSS

:root {
  --lucky-lobster: #c73720;
  --lucky-lobster-rgb: 199 55 32;
  --lucky-lobster-oklch: oklch(0.552 0.184 31.8);
}

.element {
  color: var(--lucky-lobster);
  background-color: hsl(8 72% 45%);
  border-color: oklch(0.552 0.184 31.8);
}

Tailwind CSS v4

@theme {
  --color-lucky-lobster: #c73720;
  --color-lucky-lobster-50: #ffe3d3;
  --color-lucky-lobster-100: #ffd2c0;
  --color-lucky-lobster-200: #ffb7a0;
  --color-lucky-lobster-300: #ff9277;
  --color-lucky-lobster-400: #f86d55;
  --color-lucky-lobster-500: #e6442a;
  --color-lucky-lobster-600: #c33c26;
  --color-lucky-lobster-700: #9d301e;
  --color-lucky-lobster-800: #752017;
  --color-lucky-lobster-900: #53160f;
  --color-lucky-lobster-950: #370503;
}

SCSS

$lucky-lobster: #c73720;
$lucky-lobster-rgb: 199, 55, 32;
$lucky-lobster-light: mix(#fff, $lucky-lobster, 20%);
$lucky-lobster-dark: mix(#000, $lucky-lobster, 20%);

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