#54AE3C

CSS

:root {
  --grass: #54ae3c;
  --grass-rgb: 84 174 60;
  --grass-oklch: oklch(0.671 0.174 139.7);
}

.element {
  color: var(--grass);
  background-color: hsl(107 49% 46%);
  border-color: oklch(0.671 0.174 139.7);
}

Tailwind CSS v4

@theme {
  --color-grass: #54ae3c;
  --color-grass-50: #daffd4;
  --color-grass-100: #c8f7c1;
  --color-grass-200: #aae7a2;
  --color-grass-300: #82ce79;
  --color-grass-400: #62b64c;
  --color-grass-500: #38a012;
  --color-grass-600: #328715;
  --color-grass-700: #276c12;
  --color-grass-800: #1f4f04;
  --color-grass-900: #153704;
  --color-grass-950: #062200;
}

SCSS

$grass: #54ae3c;
$grass-rgb: 84, 174, 60;
$grass-light: mix(#fff, $grass, 20%);
$grass-dark: mix(#000, $grass, 20%);

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