#84A646

CSS

:root {
  --lime-it-or-leave-it: #84a646;
  --lime-it-or-leave-it-rgb: 132 166 70;
  --lime-it-or-leave-it-oklch: oklch(0.679 0.13 126);
}

.element {
  color: var(--lime-it-or-leave-it);
  background-color: hsl(81 41% 46%);
  border-color: oklch(0.679 0.13 126);
}

Tailwind CSS v4

@theme {
  --color-lime-it-or-leave-it: #84a646;
  --color-lime-it-or-leave-it-50: #eafdd5;
  --color-lime-it-or-leave-it-100: #dbf1c3;
  --color-lime-it-or-leave-it-200: #c4dfa4;
  --color-lime-it-or-leave-it-300: #a4c47b;
  --color-lime-it-or-leave-it-400: #8bac52;
  --color-lime-it-or-leave-it-500: #719523;
  --color-lime-it-or-leave-it-600: #607e20;
  --color-lime-it-or-leave-it-700: #4c651a;
  --color-lime-it-or-leave-it-800: #39490e;
  --color-lime-it-or-leave-it-900: #273309;
  --color-lime-it-or-leave-it-950: #151f00;
}

SCSS

$lime-it-or-leave-it: #84a646;
$lime-it-or-leave-it-rgb: 132, 166, 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);
}