#7FA567

CSS

:root {
  --garden-of-eden: #7fa567;
  --garden-of-eden-rgb: 127 165 103;
  --garden-of-eden-oklch: oklch(0.678 0.097 134);
}

.element {
  color: var(--garden-of-eden);
  background-color: hsl(97 26% 53%);
  border-color: oklch(0.678 0.097 134);
}

Tailwind CSS v4

@theme {
  --color-garden-of-eden: #7fa567;
  --color-garden-of-eden-50: #e9fce1;
  --color-garden-of-eden-100: #daf0d0;
  --color-garden-of-eden-200: #c2deb5;
  --color-garden-of-eden-300: #a1c392;
  --color-garden-of-eden-400: #87ab70;
  --color-garden-of-eden-500: #6b9450;
  --color-garden-of-eden-600: #5b7d44;
  --color-garden-of-eden-700: #496436;
  --color-garden-of-eden-800: #364925;
  --color-garden-of-eden-900: #253319;
  --color-garden-of-eden-950: #131e09;
}

SCSS

$garden-of-eden: #7fa567;
$garden-of-eden-rgb: 127, 165, 103;
$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);
}