#587F43

CSS

:root {
  --shepherd-s-green: #587f43;
  --shepherd-s-green-rgb: 88 127 67;
  --shepherd-s-green-oklch: oklch(0.552 0.098 135.5);
}

.element {
  color: var(--shepherd-s-green);
  background-color: hsl(99 31% 38%);
  border-color: oklch(0.552 0.098 135.5);
}

Tailwind CSS v4

@theme {
  --color-shepherd-s-green: #587f43;
  --color-shepherd-s-green-50: #e8fce1;
  --color-shepherd-s-green-100: #d9f0d0;
  --color-shepherd-s-green-200: #c1dfb6;
  --color-shepherd-s-green-300: #a0c493;
  --color-shepherd-s-green-400: #85ac71;
  --color-shepherd-s-green-500: #699551;
  --color-shepherd-s-green-600: #597e45;
  --color-shepherd-s-green-700: #476537;
  --color-shepherd-s-green-800: #344a25;
  --color-shepherd-s-green-900: #243319;
  --color-shepherd-s-green-950: #131f0a;
}

SCSS

$shepherd-s-green: #587f43;
$shepherd-s-green-rgb: 88, 127, 67;
$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);
}