#6B7D49

CSS

:root {
  --beyond-the-pines: #6b7d49;
  --beyond-the-pines-rgb: 107 125 73;
  --beyond-the-pines-oklch: oklch(0.562 0.078 124.4);
}

.element {
  color: var(--beyond-the-pines);
  background-color: hsl(81 26% 39%);
  border-color: oklch(0.562 0.078 124.4);
}

Tailwind CSS v4

@theme {
  --color-beyond-the-pines: #6b7d49;
  --color-beyond-the-pines-50: #effae2;
  --color-beyond-the-pines-100: #e1edd1;
  --color-beyond-the-pines-200: #ccdbb7;
  --color-beyond-the-pines-300: #adbf94;
  --color-beyond-the-pines-400: #94a774;
  --color-beyond-the-pines-500: #7b8f55;
  --color-beyond-the-pines-600: #687948;
  --color-beyond-the-pines-700: #536139;
  --color-beyond-the-pines-800: #3d4728;
  --color-beyond-the-pines-900: #2a311b;
  --color-beyond-the-pines-950: #181d0b;
}

SCSS

$beyond-the-pines: #6b7d49;
$beyond-the-pines-rgb: 107, 125, 73;
$beyond-the-pines-light: mix(#fff, $beyond-the-pines, 20%);
$beyond-the-pines-dark: mix(#000, $beyond-the-pines, 20%);

.element {
  color: $beyond-the-pines;
  box-shadow: 0 0 0 2px rgba($beyond-the-pines, 0.35);
}