#D0490F

CSS

:root {
  --mellow-mango: #d0490f;
  --mellow-mango-rgb: 208 73 15;
  --mellow-mango-oklch: oklch(0.586 0.181 39.1);
}

.element {
  color: var(--mellow-mango);
  background-color: hsl(18 87% 44%);
  border-color: oklch(0.586 0.181 39.1);
}

Tailwind CSS v4

@theme {
  --color-mellow-mango: #d0490f;
  --color-mellow-mango-50: #ffe5ce;
  --color-mellow-mango-100: #ffd4ba;
  --color-mellow-mango-200: #ffba98;
  --color-mellow-mango-300: #ff956c;
  --color-mellow-mango-400: #f57245;
  --color-mellow-mango-500: #e34b00;
  --color-mellow-mango-600: #c04108;
  --color-mellow-mango-700: #9a3409;
  --color-mellow-mango-800: #742409;
  --color-mellow-mango-900: #521806;
  --color-mellow-mango-950: #360700;
}

SCSS

$mellow-mango: #d0490f;
$mellow-mango-rgb: 208, 73, 15;
$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);
}