#538241

CSS

:root {
  --shepherd-s-green: #538241;
  --shepherd-s-green-rgb: 83 130 65;
  --shepherd-s-green-oklch: oklch(0.557 0.108 137.6);
}

.element {
  color: var(--shepherd-s-green);
  background-color: hsl(103 33% 38%);
  border-color: oklch(0.557 0.108 137.6);
}

Tailwind CSS v4

@theme {
  --color-shepherd-s-green: #538241;
  --color-shepherd-s-green-50: #e6fde0;
  --color-shepherd-s-green-100: #d6f1cf;
  --color-shepherd-s-green-200: #bde0b4;
  --color-shepherd-s-green-300: #9bc591;
  --color-shepherd-s-green-400: #7fae6e;
  --color-shepherd-s-green-500: #62974d;
  --color-shepherd-s-green-600: #537f42;
  --color-shepherd-s-green-700: #426635;
  --color-shepherd-s-green-800: #314b23;
  --color-shepherd-s-green-900: #213417;
  --color-shepherd-s-green-950: #111f08;
}

SCSS

$shepherd-s-green: #538241;
$shepherd-s-green-rgb: 83, 130, 65;
$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);
}