#006C45

CSS

:root {
  --into-the-green: #006c45;
  --into-the-green-rgb: 0 108 69;
  --into-the-green-oklch: oklch(0.469 0.106 159.9);
}

.element {
  color: var(--into-the-green);
  background-color: hsl(158 100% 21%);
  border-color: oklch(0.469 0.106 159.9);
}

Tailwind CSS v4

@theme {
  --color-into-the-green: #006c45;
  --color-into-the-green-50: #dbffec;
  --color-into-the-green-100: #c9f4dd;
  --color-into-the-green-200: #ace3c6;
  --color-into-the-green-300: #85c9a7;
  --color-into-the-green-400: #61b289;
  --color-into-the-green-500: #379b6d;
  --color-into-the-green-600: #31835d;
  --color-into-the-green-700: #27694a;
  --color-into-the-green-800: #1c4d34;
  --color-into-the-green-900: #133623;
  --color-into-the-green-950: #042112;
}

SCSS

$into-the-green: #006c45;
$into-the-green-rgb: 0, 108, 69;
$into-the-green-light: mix(#fff, $into-the-green, 20%);
$into-the-green-dark: mix(#000, $into-the-green, 20%);

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