Yippie Ya Yellow

CSS

:root {
  --yippie-ya-yellow: #f9f59f;
  --yippie-ya-yellow-rgb: 249 245 159;
  --yippie-ya-yellow-oklch: oklch(0.954 0.107 106);
}

.element {
  color: var(--yippie-ya-yellow);
  background-color: hsl(57 88% 80%);
  border-color: oklch(0.954 0.107 106);
}

Tailwind CSS v4

@theme {
  --color-yippie-ya-yellow: #f9f59f;
  --color-yippie-ya-yellow-50: #f8f8d5;
  --color-yippie-ya-yellow-100: #ebebc2;
  --color-yippie-ya-yellow-200: #d8d8a3;
  --color-yippie-ya-yellow-300: #bcbc7b;
  --color-yippie-ya-yellow-400: #a7a253;
  --color-yippie-ya-yellow-500: #908a26;
  --color-yippie-ya-yellow-600: #7a7523;
  --color-yippie-ya-yellow-700: #615d1c;
  --color-yippie-ya-yellow-800: #494411;
  --color-yippie-ya-yellow-900: #322f0a;
  --color-yippie-ya-yellow-950: #1e1b01;
}

SCSS

$yippie-ya-yellow: #f9f59f;
$yippie-ya-yellow-rgb: 249, 245, 159;
$yippie-ya-yellow-light: mix(#fff, $yippie-ya-yellow, 20%);
$yippie-ya-yellow-dark: mix(#000, $yippie-ya-yellow, 20%);

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