#512D32

CSS

:root {
  --dark-roast: #512d32;
  --dark-roast-rgb: 81 45 50;
  --dark-roast-oklch: oklch(0.345 0.053 11.3);
}

.element {
  color: var(--dark-roast);
  background-color: hsl(352 29% 25%);
  border-color: oklch(0.345 0.053 11.3);
}

Tailwind CSS v4

@theme {
  --color-dark-roast: #512d32;
  --color-dark-roast-50: #ffeff1;
  --color-dark-roast-100: #f9e1e3;
  --color-dark-roast-200: #eacbce;
  --color-dark-roast-300: #d1adaf;
  --color-dark-roast-400: #bc9296;
  --color-dark-roast-500: #a6787d;
  --color-dark-roast-600: #8d666a;
  --color-dark-roast-700: #715155;
  --color-dark-roast-800: #533b3e;
  --color-dark-roast-900: #3a282b;
  --color-dark-roast-950: #241618;
}

SCSS

$dark-roast: #512d32;
$dark-roast-rgb: 81, 45, 50;
$dark-roast-light: mix(#fff, $dark-roast, 20%);
$dark-roast-dark: mix(#000, $dark-roast, 20%);

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