#78A39D

CSS

:root {
  --japanese-bonsai: #78a39d;
  --japanese-bonsai-rgb: 120 163 157;
  --japanese-bonsai-oklch: oklch(0.682 0.047 185.5);
}

.element {
  color: var(--japanese-bonsai);
  background-color: hsl(172 19% 55%);
  border-color: oklch(0.682 0.047 185.5);
}

Tailwind CSS v4

@theme {
  --color-japanese-bonsai: #78a39d;
  --color-japanese-bonsai-50: #e7faf7;
  --color-japanese-bonsai-100: #d7edea;
  --color-japanese-bonsai-200: #bfdbd8;
  --color-japanese-bonsai-300: #9dc0bb;
  --color-japanese-bonsai-400: #7fa8a2;
  --color-japanese-bonsai-500: #61918a;
  --color-japanese-bonsai-600: #537a75;
  --color-japanese-bonsai-700: #42625e;
  --color-japanese-bonsai-800: #304844;
  --color-japanese-bonsai-900: #20322f;
  --color-japanese-bonsai-950: #101e1b;
}

SCSS

$japanese-bonsai: #78a39d;
$japanese-bonsai-rgb: 120, 163, 157;
$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);
}