Butter Yellow

CSS

:root {
  --butter-yellow: #fffd74;
  --butter-yellow-rgb: 255 253 116;
  --butter-yellow-oklch: oklch(0.97 0.158 108.2);
}

.element {
  color: var(--butter-yellow);
  background-color: hsl(59 100% 73%);
  border-color: oklch(0.97 0.158 108.2);
}

Tailwind CSS v4

@theme {
  --color-butter-yellow: #fffd74;
  --color-butter-yellow-50: #f7fac6;
  --color-butter-yellow-100: #eaedb0;
  --color-butter-yellow-200: #d8db8a;
  --color-butter-yellow-300: #bcbe58;
  --color-butter-yellow-400: #a8a406;
  --color-butter-yellow-500: #918c00;
  --color-butter-yellow-600: #7b7600;
  --color-butter-yellow-700: #625f00;
  --color-butter-yellow-800: #4a4500;
  --color-butter-yellow-900: #332f00;
  --color-butter-yellow-950: #1f1c00;
}

SCSS

$butter-yellow: #fffd74;
$butter-yellow-rgb: 255, 253, 116;
$butter-yellow-light: mix(#fff, $butter-yellow, 20%);
$butter-yellow-dark: mix(#000, $butter-yellow, 20%);

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