#84A643

CSS

:root {
  --lime-it-or-leave-it: #84a643;
  --lime-it-or-leave-it-rgb: 132 166 67;
  --lime-it-or-leave-it-oklch: oklch(0.679 0.133 125.7);
}

.element {
  color: var(--lime-it-or-leave-it);
  background-color: hsl(81 42% 46%);
  border-color: oklch(0.679 0.133 125.7);
}

Tailwind CSS v4

@theme {
  --color-lime-it-or-leave-it: #84a643;
  --color-lime-it-or-leave-it-50: #eafdd5;
  --color-lime-it-or-leave-it-100: #dbf1c2;
  --color-lime-it-or-leave-it-200: #c4e0a2;
  --color-lime-it-or-leave-it-300: #a4c479;
  --color-lime-it-or-leave-it-400: #8bac50;
  --color-lime-it-or-leave-it-500: #71951d;
  --color-lime-it-or-leave-it-600: #607e1d;
  --color-lime-it-or-leave-it-700: #4c6517;
  --color-lime-it-or-leave-it-800: #394a0b;
  --color-lime-it-or-leave-it-900: #273307;
  --color-lime-it-or-leave-it-950: #151f00;
}

SCSS

$lime-it-or-leave-it: #84a643;
$lime-it-or-leave-it-rgb: 132, 166, 67;
$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);
}