#7D7547

CSS

:root {
  --greek-oregano: #7d7547;
  --greek-oregano-rgb: 125 117 71;
  --greek-oregano-oklch: oklch(0.558 0.065 99.6);
}

.element {
  color: var(--greek-oregano);
  background-color: hsl(51 28% 38%);
  border-color: oklch(0.558 0.065 99.6);
}

Tailwind CSS v4

@theme {
  --color-greek-oregano: #7d7547;
  --color-greek-oregano-50: #f9f6e1;
  --color-greek-oregano-100: #ece9d0;
  --color-greek-oregano-200: #dad6b6;
  --color-greek-oregano-300: #beb993;
  --color-greek-oregano-400: #a7a073;
  --color-greek-oregano-500: #908753;
  --color-greek-oregano-600: #7a7347;
  --color-greek-oregano-700: #625c39;
  --color-greek-oregano-800: #484328;
  --color-greek-oregano-900: #322e1b;
  --color-greek-oregano-950: #1e1b0b;
}

SCSS

$greek-oregano: #7d7547;
$greek-oregano-rgb: 125, 117, 71;
$greek-oregano-light: mix(#fff, $greek-oregano, 20%);
$greek-oregano-dark: mix(#000, $greek-oregano, 20%);

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