#CC3318

CSS

:root {
  --lucky-lobster: #cc3318;
  --lucky-lobster-rgb: 204 51 24;
  --lucky-lobster-oklch: oklch(0.557 0.193 32.3);
}

.element {
  color: var(--lucky-lobster);
  background-color: hsl(9 79% 45%);
  border-color: oklch(0.557 0.193 32.3);
}

Tailwind CSS v4

@theme {
  --color-lucky-lobster: #cc3318;
  --color-lucky-lobster-50: #ffe2d1;
  --color-lucky-lobster-100: #ffd1bd;
  --color-lucky-lobster-200: #ffb59d;
  --color-lucky-lobster-300: #ff8f72;
  --color-lucky-lobster-400: #fb6a4f;
  --color-lucky-lobster-500: #ea3e20;
  --color-lucky-lobster-600: #c6371e;
  --color-lucky-lobster-700: #9f2c18;
  --color-lucky-lobster-800: #771d13;
  --color-lucky-lobster-900: #54140c;
  --color-lucky-lobster-950: #380401;
}

SCSS

$lucky-lobster: #cc3318;
$lucky-lobster-rgb: 204, 51, 24;
$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);
}