#243020

CSS

:root {
  --midnight-pines: #243020;
  --midnight-pines-rgb: 36 48 32;
  --midnight-pines-oklch: oklch(0.293 0.033 138);
}

.element {
  color: var(--midnight-pines);
  background-color: hsl(105 20% 16%);
  border-color: oklch(0.293 0.033 138);
}

Tailwind CSS v4

@theme {
  --color-midnight-pines: #243020;
  --color-midnight-pines-50: #f0f8ef;
  --color-midnight-pines-100: #e2ebe0;
  --color-midnight-pines-200: #cdd8cb;
  --color-midnight-pines-300: #afbcac;
  --color-midnight-pines-400: #95a391;
  --color-midnight-pines-500: #7c8c77;
  --color-midnight-pines-600: #697665;
  --color-midnight-pines-700: #545f50;
  --color-midnight-pines-800: #3d453a;
  --color-midnight-pines-900: #2a3028;
  --color-midnight-pines-950: #181c16;
}

SCSS

$midnight-pines: #243020;
$midnight-pines-rgb: 36, 48, 32;
$midnight-pines-light: mix(#fff, $midnight-pines, 20%);
$midnight-pines-dark: mix(#000, $midnight-pines, 20%);

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