#6A7D4C

CSS

:root {
  --beyond-the-pines: #6a7d4c;
  --beyond-the-pines-rgb: 106 125 76;
  --beyond-the-pines-oklch: oklch(0.562 0.074 126);
}

.element {
  color: var(--beyond-the-pines);
  background-color: hsl(83 24% 39%);
  border-color: oklch(0.562 0.074 126);
}

Tailwind CSS v4

@theme {
  --color-beyond-the-pines: #6a7d4c;
  --color-beyond-the-pines-50: #effae3;
  --color-beyond-the-pines-100: #e1edd3;
  --color-beyond-the-pines-200: #cbdbb9;
  --color-beyond-the-pines-300: #acbf97;
  --color-beyond-the-pines-400: #93a777;
  --color-beyond-the-pines-500: #7a8f58;
  --color-beyond-the-pines-600: #67794b;
  --color-beyond-the-pines-700: #52613c;
  --color-beyond-the-pines-800: #3d472a;
  --color-beyond-the-pines-900: #2a311c;
  --color-beyond-the-pines-950: #171d0c;
}

SCSS

$beyond-the-pines: #6a7d4c;
$beyond-the-pines-rgb: 106, 125, 76;
$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);
}