#88A550

CSS

:root {
  --lime-it-or-leave-it: #88a550;
  --lime-it-or-leave-it-rgb: 136 165 80;
  --lime-it-or-leave-it-oklch: oklch(0.681 0.117 125);
}

.element {
  color: var(--lime-it-or-leave-it);
  background-color: hsl(80 35% 48%);
  border-color: oklch(0.681 0.117 125);
}

Tailwind CSS v4

@theme {
  --color-lime-it-or-leave-it: #88a550;
  --color-lime-it-or-leave-it-50: #ecfcd8;
  --color-lime-it-or-leave-it-100: #ddf0c6;
  --color-lime-it-or-leave-it-200: #c7dea8;
  --color-lime-it-or-leave-it-300: #a7c381;
  --color-lime-it-or-leave-it-400: #8fab5a;
  --color-lime-it-or-leave-it-500: #749332;
  --color-lime-it-or-leave-it-600: #637c2c;
  --color-lime-it-or-leave-it-700: #4f6423;
  --color-lime-it-or-leave-it-800: #3b4915;
  --color-lime-it-or-leave-it-900: #28320e;
  --color-lime-it-or-leave-it-950: #161e02;
}

SCSS

$lime-it-or-leave-it: #88a550;
$lime-it-or-leave-it-rgb: 136, 165, 80;
$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);
}