#168559

CSS

:root {
  --primal-green: #168559;
  --primal-green-rgb: 22 133 89;
  --primal-green-oklch: oklch(0.547 0.117 160.3);
}

.element {
  color: var(--primal-green);
  background-color: hsl(156 72% 30%);
  border-color: oklch(0.547 0.117 160.3);
}

Tailwind CSS v4

@theme {
  --color-primal-green: #168559;
  --color-primal-green-50: #d8ffeb;
  --color-primal-green-100: #c6f5dc;
  --color-primal-green-200: #a7e4c5;
  --color-primal-green-300: #7ecaa6;
  --color-primal-green-400: #58b487;
  --color-primal-green-500: #249d6b;
  --color-primal-green-600: #23855b;
  --color-primal-green-700: #1c6b49;
  --color-primal-green-800: #154e33;
  --color-primal-green-900: #0e3622;
  --color-primal-green-950: #012112;
}

SCSS

$primal-green: #168559;
$primal-green-rgb: 22, 133, 89;
$primal-green-light: mix(#fff, $primal-green, 20%);
$primal-green-dark: mix(#000, $primal-green, 20%);

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