Japanese Indigo

CSS

:root {
  --japanese-indigo: #264348;
  --japanese-indigo-rgb: 38 67 72;
  --japanese-indigo-oklch: oklch(0.362 0.036 209.6);
}

.element {
  color: var(--japanese-indigo);
  background-color: hsl(189 31% 22%);
  border-color: oklch(0.362 0.036 209.6);
}

Tailwind CSS v4

@theme {
  --color-japanese-indigo: #264348;
  --color-japanese-indigo-50: #eaf8fb;
  --color-japanese-indigo-100: #dbebef;
  --color-japanese-indigo-200: #c4d9dd;
  --color-japanese-indigo-300: #a3bdc2;
  --color-japanese-indigo-400: #87a5aa;
  --color-japanese-indigo-500: #6b8d93;
  --color-japanese-indigo-600: #5b777c;
  --color-japanese-indigo-700: #486064;
  --color-japanese-indigo-800: #344649;
  --color-japanese-indigo-900: #233032;
  --color-japanese-indigo-950: #121d1e;
}

SCSS

$japanese-indigo: #264348;
$japanese-indigo-rgb: 38, 67, 72;
$japanese-indigo-light: mix(#fff, $japanese-indigo, 20%);
$japanese-indigo-dark: mix(#000, $japanese-indigo, 20%);

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