#6A7D43

CSS

:root {
  --beyond-the-pines: #6a7d43;
  --beyond-the-pines-rgb: 106 125 67;
  --beyond-the-pines-oklch: oklch(0.56 0.085 124);
}

.element {
  color: var(--beyond-the-pines);
  background-color: hsl(80 30% 38%);
  border-color: oklch(0.56 0.085 124);
}

Tailwind CSS v4

@theme {
  --color-beyond-the-pines: #6a7d43;
  --color-beyond-the-pines-50: #effae0;
  --color-beyond-the-pines-100: #e1eecf;
  --color-beyond-the-pines-200: #cbdbb4;
  --color-beyond-the-pines-300: #acc090;
  --color-beyond-the-pines-400: #94a76f;
  --color-beyond-the-pines-500: #7a904e;
  --color-beyond-the-pines-600: #687a43;
  --color-beyond-the-pines-700: #536135;
  --color-beyond-the-pines-800: #3d4725;
  --color-beyond-the-pines-900: #2a3118;
  --color-beyond-the-pines-950: #181d09;
}

SCSS

$beyond-the-pines: #6a7d43;
$beyond-the-pines-rgb: 106, 125, 67;
$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);
}