#5D741B

CSS

:root {
  --over-the-hills: #5d741b;
  --over-the-hills-rgb: 93 116 27;
  --over-the-hills-oklch: oklch(0.523 0.116 123.3);
}

.element {
  color: var(--over-the-hills);
  background-color: hsl(76 62% 28%);
  border-color: oklch(0.523 0.116 123.3);
}

Tailwind CSS v4

@theme {
  --color-over-the-hills: #5d741b;
  --color-over-the-hills-50: #edfcd8;
  --color-over-the-hills-100: #dfefc6;
  --color-over-the-hills-200: #c9dea8;
  --color-over-the-hills-300: #a9c280;
  --color-over-the-hills-400: #91aa5a;
  --color-over-the-hills-500: #789231;
  --color-over-the-hills-600: #657c2b;
  --color-over-the-hills-700: #516322;
  --color-over-the-hills-800: #3c4815;
  --color-over-the-hills-900: #29320d;
  --color-over-the-hills-950: #171e02;
}

SCSS

$over-the-hills: #5d741b;
$over-the-hills-rgb: 93, 116, 27;
$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);
}