#8A9F9C

CSS

:root {
  --japanese-bonsai: #8a9f9c;
  --japanese-bonsai-rgb: 138 159 156;
  --japanese-bonsai-oklch: oklch(0.685 0.024 186.2);
}

.element {
  color: var(--japanese-bonsai);
  background-color: hsl(171 10% 58%);
  border-color: oklch(0.685 0.024 186.2);
}

Tailwind CSS v4

@theme {
  --color-japanese-bonsai: #8a9f9c;
  --color-japanese-bonsai-50: #eef7f6;
  --color-japanese-bonsai-100: #dfebe9;
  --color-japanese-bonsai-200: #c9d8d6;
  --color-japanese-bonsai-300: #aabcba;
  --color-japanese-bonsai-400: #8fa3a0;
  --color-japanese-bonsai-500: #758c88;
  --color-japanese-bonsai-600: #637673;
  --color-japanese-bonsai-700: #4f5f5c;
  --color-japanese-bonsai-800: #394543;
  --color-japanese-bonsai-900: #27302e;
  --color-japanese-bonsai-950: #151c1b;
}

SCSS

$japanese-bonsai: #8a9f9c;
$japanese-bonsai-rgb: 138, 159, 156;
$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);
}