#1F845B

CSS

:root {
  --primal-green: #1f845b;
  --primal-green-rgb: 31 132 91;
  --primal-green-oklch: oklch(0.547 0.111 161);
}

.element {
  color: var(--primal-green);
  background-color: hsl(156 62% 32%);
  border-color: oklch(0.547 0.111 161);
}

Tailwind CSS v4

@theme {
  --color-primal-green: #1f845b;
  --color-primal-green-50: #daffec;
  --color-primal-green-100: #c7f4dd;
  --color-primal-green-200: #a9e4c7;
  --color-primal-green-300: #81caa7;
  --color-primal-green-400: #5cb389;
  --color-primal-green-500: #2d9c6e;
  --color-primal-green-600: #29845d;
  --color-primal-green-700: #216a4a;
  --color-primal-green-800: #184e34;
  --color-primal-green-900: #103623;
  --color-primal-green-950: #022112;
}

SCSS

$primal-green: #1f845b;
$primal-green-rgb: 31, 132, 91;
$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);
}