#465736

CSS

:root {
  --zen-garden-olive: #465736;
  --zen-garden-olive-rgb: 70 87 54;
  --zen-garden-olive-oklch: oklch(0.433 0.056 130.6);
}

.element {
  color: var(--zen-garden-olive);
  background-color: hsl(91 23% 28%);
  border-color: oklch(0.433 0.056 130.6);
}

Tailwind CSS v4

@theme {
  --color-zen-garden-olive: #465736;
  --color-zen-garden-olive-50: #eff9e9;
  --color-zen-garden-olive-100: #e1ecd9;
  --color-zen-garden-olive-200: #cbdac1;
  --color-zen-garden-olive-300: #adbea1;
  --color-zen-garden-olive-400: #93a683;
  --color-zen-garden-olive-500: #7a8e67;
  --color-zen-garden-olive-600: #677857;
  --color-zen-garden-olive-700: #526046;
  --color-zen-garden-olive-800: #3c4632;
  --color-zen-garden-olive-900: #2a3122;
  --color-zen-garden-olive-950: #171d11;
}

SCSS

$zen-garden-olive: #465736;
$zen-garden-olive-rgb: 70, 87, 54;
$zen-garden-olive-light: mix(#fff, $zen-garden-olive, 20%);
$zen-garden-olive-dark: mix(#000, $zen-garden-olive, 20%);

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