#F37731

CSS

:root {
  --orange-crush: #f37731;
  --orange-crush-rgb: 243 119 49;
  --orange-crush-oklch: oklch(0.704 0.172 46.5);
}

.element {
  color: var(--orange-crush);
  background-color: hsl(22 89% 57%);
  border-color: oklch(0.704 0.172 46.5);
}

Tailwind CSS v4

@theme {
  --color-orange-crush: #f37731;
  --color-orange-crush-50: #ffe7cb;
  --color-orange-crush-100: #ffd7b6;
  --color-orange-crush-200: #ffbe93;
  --color-orange-crush-300: #fe9b65;
  --color-orange-crush-400: #ee7939;
  --color-orange-crush-500: #dc5500;
  --color-orange-crush-600: #ba4900;
  --color-orange-crush-700: #963b00;
  --color-orange-crush-800: #702900;
  --color-orange-crush-900: #4f1b00;
  --color-orange-crush-950: #340b00;
}

SCSS

$orange-crush: #f37731;
$orange-crush-rgb: 243, 119, 49;
$orange-crush-light: mix(#fff, $orange-crush, 20%);
$orange-crush-dark: mix(#000, $orange-crush, 20%);

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