#88A099

CSS

:root {
  --japanese-bonsai: #88a099;
  --japanese-bonsai-rgb: 136 160 153;
  --japanese-bonsai-oklch: oklch(0.685 0.029 175.9);
}

.element {
  color: var(--japanese-bonsai);
  background-color: hsl(162 11% 58%);
  border-color: oklch(0.685 0.029 175.9);
}

Tailwind CSS v4

@theme {
  --color-japanese-bonsai: #88a099;
  --color-japanese-bonsai-50: #edf8f5;
  --color-japanese-bonsai-100: #deebe8;
  --color-japanese-bonsai-200: #c8d8d4;
  --color-japanese-bonsai-300: #a9bcb7;
  --color-japanese-bonsai-400: #8da49e;
  --color-japanese-bonsai-500: #738d85;
  --color-japanese-bonsai-600: #617771;
  --color-japanese-bonsai-700: #4e5f5a;
  --color-japanese-bonsai-800: #384641;
  --color-japanese-bonsai-900: #27302d;
  --color-japanese-bonsai-950: #151d1a;
}

SCSS

$japanese-bonsai: #88a099;
$japanese-bonsai-rgb: 136, 160, 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);
}