#F67539

CSS

:root {
  --extreme-carrot: #f67539;
  --extreme-carrot-rgb: 246 117 57;
  --extreme-carrot-oklch: oklch(0.706 0.174 43.3);
}

.element {
  color: var(--extreme-carrot);
  background-color: hsl(19 91% 59%);
  border-color: oklch(0.706 0.174 43.3);
}

Tailwind CSS v4

@theme {
  --color-extreme-carrot: #f67539;
  --color-extreme-carrot-50: #ffe6cc;
  --color-extreme-carrot-100: #ffd6b8;
  --color-extreme-carrot-200: #ffbd95;
  --color-extreme-carrot-300: #ff9968;
  --color-extreme-carrot-400: #f0763f;
  --color-extreme-carrot-500: #df5200;
  --color-extreme-carrot-600: #bc4700;
  --color-extreme-carrot-700: #973800;
  --color-extreme-carrot-800: #712703;
  --color-extreme-carrot-900: #501a03;
  --color-extreme-carrot-950: #350a00;
}

SCSS

$extreme-carrot: #f67539;
$extreme-carrot-rgb: 246, 117, 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);
}