#667C3A

CSS

:root {
  --beyond-the-pines: #667c3a;
  --beyond-the-pines-rgb: 102 124 58;
  --beyond-the-pines-oklch: oklch(0.553 0.096 124.7);
}

.element {
  color: var(--beyond-the-pines);
  background-color: hsl(80 36% 36%);
  border-color: oklch(0.553 0.096 124.7);
}

Tailwind CSS v4

@theme {
  --color-beyond-the-pines: #667c3a;
  --color-beyond-the-pines-50: #eefbde;
  --color-beyond-the-pines-100: #dfeecc;
  --color-beyond-the-pines-200: #c9dcb1;
  --color-beyond-the-pines-300: #aac18c;
  --color-beyond-the-pines-400: #92a869;
  --color-beyond-the-pines-500: #789147;
  --color-beyond-the-pines-600: #667b3d;
  --color-beyond-the-pines-700: #516230;
  --color-beyond-the-pines-800: #3c4820;
  --color-beyond-the-pines-900: #293215;
  --color-beyond-the-pines-950: #171e07;
}

SCSS

$beyond-the-pines: #667c3a;
$beyond-the-pines-rgb: 102, 124, 58;
$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);
}