#568063

CSS

:root {
  --clouded-pine: #568063;
  --clouded-pine-rgb: 86 128 99;
  --clouded-pine-oklch: oklch(0.56 0.065 153.7);
}

.element {
  color: var(--clouded-pine);
  background-color: hsl(139 20% 42%);
  border-color: oklch(0.56 0.065 153.7);
}

Tailwind CSS v4

@theme {
  --color-clouded-pine: #568063;
  --color-clouded-pine-50: #e7fbed;
  --color-clouded-pine-100: #d8efdf;
  --color-clouded-pine-200: #bfddc9;
  --color-clouded-pine-300: #9ec2aa;
  --color-clouded-pine-400: #81aa8d;
  --color-clouded-pine-500: #649372;
  --color-clouded-pine-600: #557c61;
  --color-clouded-pine-700: #44644d;
  --color-clouded-pine-800: #314937;
  --color-clouded-pine-900: #213326;
  --color-clouded-pine-950: #111e14;
}

SCSS

$clouded-pine: #568063;
$clouded-pine-rgb: 86, 128, 99;
$clouded-pine-light: mix(#fff, $clouded-pine, 20%);
$clouded-pine-dark: mix(#000, $clouded-pine, 20%);

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