#CD4C00

CSS

:root {
  --dark-orange: #cd4c00;
  --dark-orange-rgb: 205 76 0;
  --dark-orange-oklch: oklch(0.585 0.177 41.9);
}

.element {
  color: var(--dark-orange);
  background-color: hsl(22 100% 40%);
  border-color: oklch(0.585 0.177 41.9);
}

Tailwind CSS v4

@theme {
  --color-dark-orange: #cd4c00;
  --color-dark-orange-50: #ffe6cd;
  --color-dark-orange-100: #ffd6b8;
  --color-dark-orange-200: #ffbc96;
  --color-dark-orange-300: #ff9869;
  --color-dark-orange-400: #f27541;
  --color-dark-orange-500: #e05000;
  --color-dark-orange-600: #be4500;
  --color-dark-orange-700: #983701;
  --color-dark-orange-800: #722605;
  --color-dark-orange-900: #511904;
  --color-dark-orange-950: #350900;
}

SCSS

$dark-orange: #cd4c00;
$dark-orange-rgb: 205, 76, 0;
$dark-orange-light: mix(#fff, $dark-orange, 20%);
$dark-orange-dark: mix(#000, $dark-orange, 20%);

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