#58700F

CSS

:root {
  --over-the-hills: #58700f;
  --over-the-hills-rgb: 88 112 15;
  --over-the-hills-oklch: oklch(0.508 0.119 123.6);
}

.element {
  color: var(--over-the-hills);
  background-color: hsl(75 76% 25%);
  border-color: oklch(0.508 0.119 123.6);
}

Tailwind CSS v4

@theme {
  --color-over-the-hills: #58700f;
  --color-over-the-hills-50: #edfcd7;
  --color-over-the-hills-100: #def0c5;
  --color-over-the-hills-200: #c8dea6;
  --color-over-the-hills-300: #a9c37f;
  --color-over-the-hills-400: #90aa57;
  --color-over-the-hills-500: #76932d;
  --color-over-the-hills-600: #647c28;
  --color-over-the-hills-700: #506320;
  --color-over-the-hills-800: #3c4813;
  --color-over-the-hills-900: #29320c;
  --color-over-the-hills-950: #171e01;
}

SCSS

$over-the-hills: #58700f;
$over-the-hills-rgb: 88, 112, 15;
$over-the-hills-light: mix(#fff, $over-the-hills, 20%);
$over-the-hills-dark: mix(#000, $over-the-hills, 20%);

.element {
  color: $over-the-hills;
  box-shadow: 0 0 0 2px rgba($over-the-hills, 0.35);
}