#73382C

CSS

:root {
  --ebi-brown: #73382c;
  --ebi-brown-rgb: 115 56 44;
  --ebi-brown-oklch: oklch(0.415 0.086 32.8);
}

.element {
  color: var(--ebi-brown);
  background-color: hsl(10 45% 31%);
  border-color: oklch(0.415 0.086 32.8);
}

Tailwind CSS v4

@theme {
  --color-ebi-brown: #73382c;
  --color-ebi-brown-50: #ffede5;
  --color-ebi-brown-100: #ffded5;
  --color-ebi-brown-200: #f7c8bc;
  --color-ebi-brown-300: #e0a89a;
  --color-ebi-brown-400: #cc8c7e;
  --color-ebi-brown-500: #b87061;
  --color-ebi-brown-600: #9b5f52;
  --color-ebi-brown-700: #7d4c42;
  --color-ebi-brown-800: #5d3730;
  --color-ebi-brown-900: #412521;
  --color-ebi-brown-950: #291410;
}

SCSS

$ebi-brown: #73382c;
$ebi-brown-rgb: 115, 56, 44;
$ebi-brown-light: mix(#fff, $ebi-brown, 20%);
$ebi-brown-dark: mix(#000, $ebi-brown, 20%);

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