#87A546

CSS

:root {
  --lime-it-or-leave-it: #87a546;
  --lime-it-or-leave-it-rgb: 135 165 70;
  --lime-it-or-leave-it-oklch: oklch(0.679 0.127 124.4);
}

.element {
  color: var(--lime-it-or-leave-it);
  background-color: hsl(79 40% 46%);
  border-color: oklch(0.679 0.127 124.4);
}

Tailwind CSS v4

@theme {
  --color-lime-it-or-leave-it: #87a546;
  --color-lime-it-or-leave-it-50: #ecfcd5;
  --color-lime-it-or-leave-it-100: #ddf0c3;
  --color-lime-it-or-leave-it-200: #c6dfa4;
  --color-lime-it-or-leave-it-300: #a7c47b;
  --color-lime-it-or-leave-it-400: #8eab52;
  --color-lime-it-or-leave-it-500: #749423;
  --color-lime-it-or-leave-it-600: #627d21;
  --color-lime-it-or-leave-it-700: #4f641a;
  --color-lime-it-or-leave-it-800: #3b490e;
  --color-lime-it-or-leave-it-900: #283309;
  --color-lime-it-or-leave-it-950: #161e00;
}

SCSS

$lime-it-or-leave-it: #87a546;
$lime-it-or-leave-it-rgb: 135, 165, 70;
$lime-it-or-leave-it-light: mix(#fff, $lime-it-or-leave-it, 20%);
$lime-it-or-leave-it-dark: mix(#000, $lime-it-or-leave-it, 20%);

.element {
  color: $lime-it-or-leave-it;
  box-shadow: 0 0 0 2px rgba($lime-it-or-leave-it, 0.35);
}