#5DAD2E

CSS

:root {
  --grass: #5dad2e;
  --grass-rgb: 93 173 46;
  --grass-oklch: oklch(0.671 0.178 136.4);
}

.element {
  color: var(--grass);
  background-color: hsl(98 58% 43%);
  border-color: oklch(0.671 0.178 136.4);
}

Tailwind CSS v4

@theme {
  --color-grass: #5dad2e;
  --color-grass-50: #dcffd1;
  --color-grass-100: #cbf7bd;
  --color-grass-200: #aee79c;
  --color-grass-300: #88cd71;
  --color-grass-400: #69b541;
  --color-grass-500: #459e00;
  --color-grass-600: #3c8600;
  --color-grass-700: #2f6b00;
  --color-grass-800: #254f00;
  --color-grass-900: #193700;
  --color-grass-950: #092100;
}

SCSS

$grass: #5dad2e;
$grass-rgb: 93, 173, 46;
$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);
}