#728100

CSS

:root {
  --olive: #728100;
  --olive-rgb: 114 129 0;
  --olive-oklch: oklch(0.571 0.132 117.6);
}

.element {
  color: var(--olive);
  background-color: hsl(67 100% 25%);
  border-color: oklch(0.571 0.132 117.6);
}

Tailwind CSS v4

@theme {
  --color-olive: #728100;
  --color-olive-50: #f0fbd1;
  --color-olive-100: #e2efbe;
  --color-olive-200: #cddd9d;
  --color-olive-300: #afc172;
  --color-olive-400: #98a845;
  --color-olive-500: #809100;
  --color-olive-600: #6c7a06;
  --color-olive-700: #566207;
  --color-olive-800: #414701;
  --color-olive-900: #2d3102;
  --color-olive-950: #1a1d00;
}

SCSS

$olive: #728100;
$olive-rgb: 114, 129, 0;
$olive-light: mix(#fff, $olive, 20%);
$olive-dark: mix(#000, $olive, 20%);

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