#007148

CSS

:root {
  --into-the-green: #007148;
  --into-the-green-rgb: 0 113 72;
  --into-the-green-oklch: oklch(0.484 0.11 159.6);
}

.element {
  color: var(--into-the-green);
  background-color: hsl(158 100% 22%);
  border-color: oklch(0.484 0.11 159.6);
}

Tailwind CSS v4

@theme {
  --color-into-the-green: #007148;
  --color-into-the-green-50: #daffeb;
  --color-into-the-green-100: #c8f4dd;
  --color-into-the-green-200: #aae4c6;
  --color-into-the-green-300: #82c9a6;
  --color-into-the-green-400: #5fb287;
  --color-into-the-green-500: #329c6c;
  --color-into-the-green-600: #2d845c;
  --color-into-the-green-700: #246a49;
  --color-into-the-green-800: #1a4e33;
  --color-into-the-green-900: #113623;
  --color-into-the-green-950: #032112;
}

SCSS

$into-the-green: #007148;
$into-the-green-rgb: 0, 113, 72;
$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);
}