#4B2F34

CSS

:root {
  --dark-roast: #4b2f34;
  --dark-roast-rgb: 75 47 52;
  --dark-roast-oklch: oklch(0.341 0.042 7.8);
}

.element {
  color: var(--dark-roast);
  background-color: hsl(349 23% 24%);
  border-color: oklch(0.341 0.042 7.8);
}

Tailwind CSS v4

@theme {
  --color-dark-roast: #4b2f34;
  --color-dark-roast-50: #fff1f2;
  --color-dark-roast-100: #f5e2e5;
  --color-dark-roast-200: #e5cdd0;
  --color-dark-roast-300: #ccafb2;
  --color-dark-roast-400: #b5959a;
  --color-dark-roast-500: #9f7b81;
  --color-dark-roast-600: #87686d;
  --color-dark-roast-700: #6c5357;
  --color-dark-roast-800: #4f3d40;
  --color-dark-roast-900: #372a2c;
  --color-dark-roast-950: #221719;
}

SCSS

$dark-roast: #4b2f34;
$dark-roast-rgb: 75, 47, 52;
$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);
}