#002F1E

CSS

:root {
  --pitch-black-forests: #002f1e;
  --pitch-black-forests-rgb: 0 47 30;
  --pitch-black-forests-oklch: oklch(0.27 0.058 163);
}

.element {
  color: var(--pitch-black-forests);
  background-color: hsl(158 100% 9%);
  border-color: oklch(0.27 0.058 163);
}

Tailwind CSS v4

@theme {
  --color-pitch-black-forests: #002f1e;
  --color-pitch-black-forests-50: #e7fbf1;
  --color-pitch-black-forests-100: #d7eee3;
  --color-pitch-black-forests-200: #beddce;
  --color-pitch-black-forests-300: #9cc1b0;
  --color-pitch-black-forests-400: #7faa95;
  --color-pitch-black-forests-500: #62937b;
  --color-pitch-black-forests-600: #537c68;
  --color-pitch-black-forests-700: #426353;
  --color-pitch-black-forests-800: #30493c;
  --color-pitch-black-forests-900: #213229;
  --color-pitch-black-forests-950: #101e17;
}

SCSS

$pitch-black-forests: #002f1e;
$pitch-black-forests-rgb: 0, 47, 30;
$pitch-black-forests-light: mix(#fff, $pitch-black-forests, 20%);
$pitch-black-forests-dark: mix(#000, $pitch-black-forests, 20%);

.element {
  color: $pitch-black-forests;
  box-shadow: 0 0 0 2px rgba($pitch-black-forests, 0.35);
}