#7EA570

CSS

:root {
  --garden-of-eden: #7ea570;
  --garden-of-eden-rgb: 126 165 112;
  --garden-of-eden-oklch: oklch(0.679 0.087 137.6);
}

.element {
  color: var(--garden-of-eden);
  background-color: hsl(104 23% 54%);
  border-color: oklch(0.679 0.087 137.6);
}

Tailwind CSS v4

@theme {
  --color-garden-of-eden: #7ea570;
  --color-garden-of-eden-50: #e9fce4;
  --color-garden-of-eden-100: #d9f0d4;
  --color-garden-of-eden-200: #c2debb;
  --color-garden-of-eden-300: #a1c398;
  --color-garden-of-eden-400: #86ab78;
  --color-garden-of-eden-500: #6a945a;
  --color-garden-of-eden-600: #5a7d4d;
  --color-garden-of-eden-700: #47643d;
  --color-garden-of-eden-800: #35492a;
  --color-garden-of-eden-900: #24331c;
  --color-garden-of-eden-950: #131e0d;
}

SCSS

$garden-of-eden: #7ea570;
$garden-of-eden-rgb: 126, 165, 112;
$garden-of-eden-light: mix(#fff, $garden-of-eden, 20%);
$garden-of-eden-dark: mix(#000, $garden-of-eden, 20%);

.element {
  color: $garden-of-eden;
  box-shadow: 0 0 0 2px rgba($garden-of-eden, 0.35);
}