#F97239

CSS

:root {
  --extreme-carrot: #f97239;
  --extreme-carrot-rgb: 249 114 57;
  --extreme-carrot-oklch: oklch(0.706 0.18 41.7);
}

.element {
  color: var(--extreme-carrot);
  background-color: hsl(18 94% 60%);
  border-color: oklch(0.706 0.18 41.7);
}

Tailwind CSS v4

@theme {
  --color-extreme-carrot: #f97239;
  --color-extreme-carrot-50: #ffe6cc;
  --color-extreme-carrot-100: #ffd5b8;
  --color-extreme-carrot-200: #ffbb95;
  --color-extreme-carrot-300: #ff9768;
  --color-extreme-carrot-400: #f3743f;
  --color-extreme-carrot-500: #e24e00;
  --color-extreme-carrot-600: #bf4300;
  --color-extreme-carrot-700: #993600;
  --color-extreme-carrot-800: #732503;
  --color-extreme-carrot-900: #511903;
  --color-extreme-carrot-950: #360800;
}

SCSS

$extreme-carrot: #f97239;
$extreme-carrot-rgb: 249, 114, 57;
$extreme-carrot-light: mix(#fff, $extreme-carrot, 20%);
$extreme-carrot-dark: mix(#000, $extreme-carrot, 20%);

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