#8DA351

CSS

:root {
  --lime-it-or-leave-it: #8da351;
  --lime-it-or-leave-it-rgb: 141 163 81;
  --lime-it-or-leave-it-oklch: oklch(0.68 0.111 121.8);
}

.element {
  color: var(--lime-it-or-leave-it);
  background-color: hsl(76 34% 48%);
  border-color: oklch(0.68 0.111 121.8);
}

Tailwind CSS v4

@theme {
  --color-lime-it-or-leave-it: #8da351;
  --color-lime-it-or-leave-it-50: #eefbd9;
  --color-lime-it-or-leave-it-100: #e0efc6;
  --color-lime-it-or-leave-it-200: #cadda9;
  --color-lime-it-or-leave-it-300: #acc182;
  --color-lime-it-or-leave-it-400: #94a95c;
  --color-lime-it-or-leave-it-500: #7a9134;
  --color-lime-it-or-leave-it-600: #687b2d;
  --color-lime-it-or-leave-it-700: #536224;
  --color-lime-it-or-leave-it-800: #3e4817;
  --color-lime-it-or-leave-it-900: #2a320e;
  --color-lime-it-or-leave-it-950: #181e02;
}

SCSS

$lime-it-or-leave-it: #8da351;
$lime-it-or-leave-it-rgb: 141, 163, 81;
$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);
}