#8AB154

CSS

:root {
  --lime-it-or-leave-it: #8ab154;
  --lime-it-or-leave-it-rgb: 138 177 84;
  --lime-it-or-leave-it-oklch: oklch(0.711 0.129 128.2);
}

.element {
  color: var(--lime-it-or-leave-it);
  background-color: hsl(85 37% 51%);
  border-color: oklch(0.711 0.129 128.2);
}

Tailwind CSS v4

@theme {
  --color-lime-it-or-leave-it: #8ab154;
  --color-lime-it-or-leave-it-50: #e9fdd7;
  --color-lime-it-or-leave-it-100: #daf1c4;
  --color-lime-it-or-leave-it-200: #c2e0a6;
  --color-lime-it-or-leave-it-300: #a1c57e;
  --color-lime-it-or-leave-it-400: #88ad55;
  --color-lime-it-or-leave-it-500: #6d9629;
  --color-lime-it-or-leave-it-600: #5c7f25;
  --color-lime-it-or-leave-it-700: #49651e;
  --color-lime-it-or-leave-it-800: #374a11;
  --color-lime-it-or-leave-it-900: #26330b;
  --color-lime-it-or-leave-it-950: #141f01;
}

SCSS

$lime-it-or-leave-it: #8ab154;
$lime-it-or-leave-it-rgb: 138, 177, 84;
$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);
}