#C2570F

CSS

:root {
  --dark-orange: #c2570f;
  --dark-orange-rgb: 194 87 15;
  --dark-orange-oklch: oklch(0.583 0.155 47);
}

.element {
  color: var(--dark-orange);
  background-color: hsl(24 86% 41%);
  border-color: oklch(0.583 0.155 47);
}

Tailwind CSS v4

@theme {
  --color-dark-orange: #c2570f;
  --color-dark-orange-50: #ffe9cf;
  --color-dark-orange-100: #ffd9bb;
  --color-dark-orange-200: #ffc199;
  --color-dark-orange-300: #f79e6d;
  --color-dark-orange-400: #e77e46;
  --color-dark-orange-500: #d55d01;
  --color-dark-orange-600: #b4500b;
  --color-dark-orange-700: #91400a;
  --color-dark-orange-800: #6c2d09;
  --color-dark-orange-900: #4c1e06;
  --color-dark-orange-950: #320d00;
}

SCSS

$dark-orange: #c2570f;
$dark-orange-rgb: 194, 87, 15;
$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);
}