#6B7037

CSS

:root {
  --jungle-look: #6b7037;
  --jungle-look-rgb: 107 112 55;
  --jungle-look-oklch: oklch(0.527 0.08 113.3);
}

.element {
  color: var(--jungle-look);
  background-color: hsl(65 34% 33%);
  border-color: oklch(0.527 0.08 113.3);
}

Tailwind CSS v4

@theme {
  --color-jungle-look: #6b7037;
  --color-jungle-look-50: #f4f8df;
  --color-jungle-look-100: #e6ecce;
  --color-jungle-look-200: #d2d9b2;
  --color-jungle-look-300: #b5bd8e;
  --color-jungle-look-400: #9ea46d;
  --color-jungle-look-500: #868c4c;
  --color-jungle-look-600: #717641;
  --color-jungle-look-700: #5b5f33;
  --color-jungle-look-800: #434523;
  --color-jungle-look-900: #2e3017;
  --color-jungle-look-950: #1b1c08;
}

SCSS

$jungle-look: #6b7037;
$jungle-look-rgb: 107, 112, 55;
$jungle-look-light: mix(#fff, $jungle-look, 20%);
$jungle-look-dark: mix(#000, $jungle-look, 20%);

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