#3C1F00

CSS

:root {
  --medium-roast: #3c1f00;
  --medium-roast-rgb: 60 31 0;
  --medium-roast-oklch: oklch(0.273 0.062 62.9);
}

.element {
  color: var(--medium-roast);
  background-color: hsl(31 100% 12%);
  border-color: oklch(0.273 0.062 62.9);
}

Tailwind CSS v4

@theme {
  --color-medium-roast: #3c1f00;
  --color-medium-roast-50: #fff2e3;
  --color-medium-roast-100: #f7e4d3;
  --color-medium-roast-200: #e8cfb9;
  --color-medium-roast-300: #ceb197;
  --color-medium-roast-400: #b99779;
  --color-medium-roast-500: #a47d5b;
  --color-medium-roast-600: #8b6a4d;
  --color-medium-roast-700: #6f553d;
  --color-medium-roast-800: #523d2c;
  --color-medium-roast-900: #392a1e;
  --color-medium-roast-950: #24180e;
}

SCSS

$medium-roast: #3c1f00;
$medium-roast-rgb: 60, 31, 0;
$medium-roast-light: mix(#fff, $medium-roast, 20%);
$medium-roast-dark: mix(#000, $medium-roast, 20%);

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