Buttercup Yellow

CSS

:root {
  --buttercup-yellow: #e3c2a3;
  --buttercup-yellow-rgb: 227 194 163;
  --buttercup-yellow-oklch: oklch(0.835 0.056 65.2);
}

.element {
  color: var(--buttercup-yellow);
  background-color: hsl(29 53% 76%);
  border-color: oklch(0.835 0.056 65.2);
}

Tailwind CSS v4

@theme {
  --color-buttercup-yellow: #e3c2a3;
  --color-buttercup-yellow-50: #fff2e5;
  --color-buttercup-yellow-100: #f5e5d5;
  --color-buttercup-yellow-200: #e5d0bb;
  --color-buttercup-yellow-300: #cbb299;
  --color-buttercup-yellow-400: #b6987c;
  --color-buttercup-yellow-500: #a07f5e;
  --color-buttercup-yellow-600: #886b50;
  --color-buttercup-yellow-700: #6d5640;
  --color-buttercup-yellow-800: #503e2e;
  --color-buttercup-yellow-900: #382b1f;
  --color-buttercup-yellow-950: #23180f;
}

SCSS

$buttercup-yellow: #e3c2a3;
$buttercup-yellow-rgb: 227, 194, 163;
$buttercup-yellow-light: mix(#fff, $buttercup-yellow, 20%);
$buttercup-yellow-dark: mix(#000, $buttercup-yellow, 20%);

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