Brown Butter

CSS

:root {
  --brown-butter: #ac7c00;
  --brown-butter-rgb: 172 124 0;
  --brown-butter-oklch: oklch(0.618 0.128 81.3);
}

.element {
  color: var(--brown-butter);
  background-color: hsl(43 100% 34%);
  border-color: oklch(0.618 0.128 81.3);
}

Tailwind CSS v4

@theme {
  --color-brown-butter: #ac7c00;
  --color-brown-butter-50: #fff3cc;
  --color-brown-butter-100: #fde5b8;
  --color-brown-butter-200: #efd095;
  --color-brown-butter-300: #d7b268;
  --color-brown-butter-400: #c49639;
  --color-brown-butter-500: #b07b00;
  --color-brown-butter-600: #956800;
  --color-brown-butter-700: #775300;
  --color-brown-butter-800: #593c00;
  --color-brown-butter-900: #3f2900;
  --color-brown-butter-950: #281700;
}

SCSS

$brown-butter: #ac7c00;
$brown-butter-rgb: 172, 124, 0;
$brown-butter-light: mix(#fff, $brown-butter, 20%);
$brown-butter-dark: mix(#000, $brown-butter, 20%);

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