#899F99

CSS

:root {
  --japanese-bonsai: #899f99;
  --japanese-bonsai-rgb: 137 159 153;
  --japanese-bonsai-oklch: oklch(0.684 0.026 177.2);
}

.element {
  color: var(--japanese-bonsai);
  background-color: hsl(164 10% 58%);
  border-color: oklch(0.684 0.026 177.2);
}

Tailwind CSS v4

@theme {
  --color-japanese-bonsai: #899f99;
  --color-japanese-bonsai-50: #eef8f5;
  --color-japanese-bonsai-100: #dfebe8;
  --color-japanese-bonsai-200: #c9d8d4;
  --color-japanese-bonsai-300: #aabcb8;
  --color-japanese-bonsai-400: #8fa49e;
  --color-japanese-bonsai-500: #748c86;
  --color-japanese-bonsai-600: #637771;
  --color-japanese-bonsai-700: #4f5f5b;
  --color-japanese-bonsai-800: #394542;
  --color-japanese-bonsai-900: #27302d;
  --color-japanese-bonsai-950: #151c1a;
}

SCSS

$japanese-bonsai: #899f99;
$japanese-bonsai-rgb: 137, 159, 153;
$japanese-bonsai-light: mix(#fff, $japanese-bonsai, 20%);
$japanese-bonsai-dark: mix(#000, $japanese-bonsai, 20%);

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