#75A771

CSS

:root {
  --garden-of-eden: #75a771;
  --garden-of-eden-rgb: 117 167 113;
  --garden-of-eden-oklch: oklch(0.679 0.094 142.7);
}

.element {
  color: var(--garden-of-eden);
  background-color: hsl(116 23% 55%);
  border-color: oklch(0.679 0.094 142.7);
}

Tailwind CSS v4

@theme {
  --color-garden-of-eden: #75a771;
  --color-garden-of-eden-50: #e5fde5;
  --color-garden-of-eden-100: #d5f1d5;
  --color-garden-of-eden-200: #bcdfbc;
  --color-garden-of-eden-300: #9ac59a;
  --color-garden-of-eden-400: #7dad79;
  --color-garden-of-eden-500: #5f965b;
  --color-garden-of-eden-600: #517f4e;
  --color-garden-of-eden-700: #41663e;
  --color-garden-of-eden-800: #304a2b;
  --color-garden-of-eden-900: #20341d;
  --color-garden-of-eden-950: #101f0d;
}

SCSS

$garden-of-eden: #75a771;
$garden-of-eden-rgb: 117, 167, 113;
$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);
}