#9EB96F

CSS

:root {
  --around-the-gills: #9eb96f;
  --around-the-gills-rgb: 158 185 111;
  --around-the-gills-oklch: oklch(0.748 0.103 125.2);
}

.element {
  color: var(--around-the-gills);
  background-color: hsl(82 35% 58%);
  border-color: oklch(0.748 0.103 125.2);
}

Tailwind CSS v4

@theme {
  --color-around-the-gills: #9eb96f;
  --color-around-the-gills-50: #edfbdc;
  --color-around-the-gills-100: #deefca;
  --color-around-the-gills-200: #c8ddae;
  --color-around-the-gills-300: #a9c288;
  --color-around-the-gills-400: #90a964;
  --color-around-the-gills-500: #769240;
  --color-around-the-gills-600: #647b37;
  --color-around-the-gills-700: #50632c;
  --color-around-the-gills-800: #3b481d;
  --color-around-the-gills-900: #293213;
  --color-around-the-gills-950: #171e05;
}

SCSS

$around-the-gills: #9eb96f;
$around-the-gills-rgb: 158, 185, 111;
$around-the-gills-light: mix(#fff, $around-the-gills, 20%);
$around-the-gills-dark: mix(#000, $around-the-gills, 20%);

.element {
  color: $around-the-gills;
  box-shadow: 0 0 0 2px rgba($around-the-gills, 0.35);
}