#CF4508

CSS

:root {
  --mellow-mango: #cf4508;
  --mellow-mango-rgb: 207 69 8;
  --mellow-mango-oklch: oklch(0.58 0.184 38.6);
}

.element {
  color: var(--mellow-mango);
  background-color: hsl(18 93% 42%);
  border-color: oklch(0.58 0.184 38.6);
}

Tailwind CSS v4

@theme {
  --color-mellow-mango: #cf4508;
  --color-mellow-mango-50: #ffe4cd;
  --color-mellow-mango-100: #ffd4b9;
  --color-mellow-mango-200: #ffb997;
  --color-mellow-mango-300: #ff946b;
  --color-mellow-mango-400: #f67044;
  --color-mellow-mango-500: #e54900;
  --color-mellow-mango-600: #c14006;
  --color-mellow-mango-700: #9b3307;
  --color-mellow-mango-800: #742309;
  --color-mellow-mango-900: #521706;
  --color-mellow-mango-950: #370700;
}

SCSS

$mellow-mango: #cf4508;
$mellow-mango-rgb: 207, 69, 8;
$mellow-mango-light: mix(#fff, $mellow-mango, 20%);
$mellow-mango-dark: mix(#000, $mellow-mango, 20%);

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