#5F7334

CSS

:root {
  --muddy-green: #5f7334;
  --muddy-green-rgb: 95 115 52;
  --muddy-green-oklch: oklch(0.524 0.092 124.1);
}

.element {
  color: var(--muddy-green);
  background-color: hsl(79 38% 33%);
  border-color: oklch(0.524 0.092 124.1);
}

Tailwind CSS v4

@theme {
  --color-muddy-green: #5f7334;
  --color-muddy-green-50: #eefade;
  --color-muddy-green-100: #e0eecd;
  --color-muddy-green-200: #cadcb2;
  --color-muddy-green-300: #abc08d;
  --color-muddy-green-400: #93a86b;
  --color-muddy-green-500: #799049;
  --color-muddy-green-600: #677a3f;
  --color-muddy-green-700: #526232;
  --color-muddy-green-800: #3d4722;
  --color-muddy-green-900: #2a3116;
  --color-muddy-green-950: #171d08;
}

SCSS

$muddy-green: #5f7334;
$muddy-green-rgb: 95, 115, 52;
$muddy-green-light: mix(#fff, $muddy-green, 20%);
$muddy-green-dark: mix(#000, $muddy-green, 20%);

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