#CD5300

CSS

:root {
  --dark-orange: #cd5300;
  --dark-orange-rgb: 205 83 0;
  --dark-orange-oklch: oklch(0.594 0.171 44.5);
}

.element {
  color: var(--dark-orange);
  background-color: hsl(24 100% 40%);
  border-color: oklch(0.594 0.171 44.5);
}

Tailwind CSS v4

@theme {
  --color-dark-orange: #cd5300;
  --color-dark-orange-50: #ffe7cc;
  --color-dark-orange-100: #ffd7b8;
  --color-dark-orange-200: #ffbd95;
  --color-dark-orange-300: #fe9a68;
  --color-dark-orange-400: #ef783e;
  --color-dark-orange-500: #dd5400;
  --color-dark-orange-600: #bb4900;
  --color-dark-orange-700: #963a00;
  --color-dark-orange-800: #702803;
  --color-dark-orange-900: #4f1b03;
  --color-dark-orange-950: #340a00;
}

SCSS

$dark-orange: #cd5300;
$dark-orange-rgb: 205, 83, 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);
}