#8CA449

CSS

:root {
  --lime-it-or-leave-it: #8ca449;
  --lime-it-or-leave-it-rgb: 140 164 73;
  --lime-it-or-leave-it-oklch: oklch(0.681 0.121 122);
}

.element {
  color: var(--lime-it-or-leave-it);
  background-color: hsl(76 38% 46%);
  border-color: oklch(0.681 0.121 122);
}

Tailwind CSS v4

@theme {
  --color-lime-it-or-leave-it: #8ca449;
  --color-lime-it-or-leave-it-50: #eefcd6;
  --color-lime-it-or-leave-it-100: #dfefc3;
  --color-lime-it-or-leave-it-200: #c9dea5;
  --color-lime-it-or-leave-it-300: #aac27c;
  --color-lime-it-or-leave-it-400: #92aa54;
  --color-lime-it-or-leave-it-500: #799227;
  --color-lime-it-or-leave-it-600: #677c24;
  --color-lime-it-or-leave-it-700: #52631c;
  --color-lime-it-or-leave-it-800: #3d4810;
  --color-lime-it-or-leave-it-900: #2a320a;
  --color-lime-it-or-leave-it-950: #181e00;
}

SCSS

$lime-it-or-leave-it: #8ca449;
$lime-it-or-leave-it-rgb: 140, 164, 73;
$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);
}