#598147

CSS

:root {
  --shepherd-s-green: #598147;
  --shepherd-s-green-rgb: 89 129 71;
  --shepherd-s-green-oklch: oklch(0.559 0.096 136.6);
}

.element {
  color: var(--shepherd-s-green);
  background-color: hsl(101 29% 39%);
  border-color: oklch(0.559 0.096 136.6);
}

Tailwind CSS v4

@theme {
  --color-shepherd-s-green: #598147;
  --color-shepherd-s-green-50: #e8fce2;
  --color-shepherd-s-green-100: #d8f0d1;
  --color-shepherd-s-green-200: #c0dfb7;
  --color-shepherd-s-green-300: #9fc494;
  --color-shepherd-s-green-400: #84ac73;
  --color-shepherd-s-green-500: #689553;
  --color-shepherd-s-green-600: #587e47;
  --color-shepherd-s-green-700: #466539;
  --color-shepherd-s-green-800: #344a27;
  --color-shepherd-s-green-900: #23331a;
  --color-shepherd-s-green-950: #121f0a;
}

SCSS

$shepherd-s-green: #598147;
$shepherd-s-green-rgb: 89, 129, 71;
$shepherd-s-green-light: mix(#fff, $shepherd-s-green, 20%);
$shepherd-s-green-dark: mix(#000, $shepherd-s-green, 20%);

.element {
  color: $shepherd-s-green;
  box-shadow: 0 0 0 2px rgba($shepherd-s-green, 0.35);
}