#398461

CSS

:root {
  --primal-green: #398461;
  --primal-green-rgb: 57 132 97;
  --primal-green-oklch: oklch(0.556 0.093 160.8);
}

.element {
  color: var(--primal-green);
  background-color: hsl(152 40% 37%);
  border-color: oklch(0.556 0.093 160.8);
}

Tailwind CSS v4

@theme {
  --color-primal-green: #398461;
  --color-primal-green-50: #defeed;
  --color-primal-green-100: #cdf2df;
  --color-primal-green-200: #b1e1c9;
  --color-primal-green-300: #8bc7aa;
  --color-primal-green-400: #6ab08c;
  --color-primal-green-500: #459972;
  --color-primal-green-600: #3c8260;
  --color-primal-green-700: #2f684d;
  --color-primal-green-800: #224c36;
  --color-primal-green-900: #173525;
  --color-primal-green-950: #072014;
}

SCSS

$primal-green: #398461;
$primal-green-rgb: 57, 132, 97;
$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);
}