#84A63B

CSS

:root {
  --lime-it-or-leave-it: #84a63b;
  --lime-it-or-leave-it-rgb: 132 166 59;
  --lime-it-or-leave-it-oklch: oklch(0.678 0.139 125);
}

.element {
  color: var(--lime-it-or-leave-it);
  background-color: hsl(79 48% 44%);
  border-color: oklch(0.678 0.139 125);
}

Tailwind CSS v4

@theme {
  --color-lime-it-or-leave-it: #84a63b;
  --color-lime-it-or-leave-it-50: #eafdd3;
  --color-lime-it-or-leave-it-100: #dbf1bf;
  --color-lime-it-or-leave-it-200: #c4e09f;
  --color-lime-it-or-leave-it-300: #a4c575;
  --color-lime-it-or-leave-it-400: #8cac49;
  --color-lime-it-or-leave-it-500: #719509;
  --color-lime-it-or-leave-it-600: #607e10;
  --color-lime-it-or-leave-it-700: #4c650e;
  --color-lime-it-or-leave-it-800: #394a04;
  --color-lime-it-or-leave-it-900: #273303;
  --color-lime-it-or-leave-it-950: #161f00;
}

SCSS

$lime-it-or-leave-it: #84a63b;
$lime-it-or-leave-it-rgb: 132, 166, 59;
$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);
}