#83A738

CSS

:root {
  --lime-it-or-leave-it: #83a738;
  --lime-it-or-leave-it-rgb: 131 167 56;
  --lime-it-or-leave-it-oklch: oklch(0.679 0.144 125.5);
}

.element {
  color: var(--lime-it-or-leave-it);
  background-color: hsl(79 50% 44%);
  border-color: oklch(0.679 0.144 125.5);
}

Tailwind CSS v4

@theme {
  --color-lime-it-or-leave-it: #83a738;
  --color-lime-it-or-leave-it-50: #eafed2;
  --color-lime-it-or-leave-it-100: #daf2be;
  --color-lime-it-or-leave-it-200: #c3e09e;
  --color-lime-it-or-leave-it-300: #a3c573;
  --color-lime-it-or-leave-it-400: #8aad46;
  --color-lime-it-or-leave-it-500: #709600;
  --color-lime-it-or-leave-it-600: #5f7f08;
  --color-lime-it-or-leave-it-700: #4b6508;
  --color-lime-it-or-leave-it-800: #394a01;
  --color-lime-it-or-leave-it-900: #273302;
  --color-lime-it-or-leave-it-950: #151f00;
}

SCSS

$lime-it-or-leave-it: #83a738;
$lime-it-or-leave-it-rgb: 131, 167, 56;
$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);
}