Under the Sun

CSS

:root {
  --under-the-sun: #efd100;
  --under-the-sun-rgb: 239 209 0;
  --under-the-sun-oklch: oklch(0.86 0.178 98.7);
}

.element {
  color: var(--under-the-sun);
  background-color: hsl(52 100% 47%);
  border-color: oklch(0.86 0.178 98.7);
}

Tailwind CSS v4

@theme {
  --color-under-the-sun: #efd100;
  --color-under-the-sun-50: #fff7bc;
  --color-under-the-sun-100: #f5eaa5;
  --color-under-the-sun-200: #e5d779;
  --color-under-the-sun-300: #ccb93b;
  --color-under-the-sun-400: #ba9e00;
  --color-under-the-sun-500: #a58300;
  --color-under-the-sun-600: #8c6f00;
  --color-under-the-sun-700: #705900;
  --color-under-the-sun-800: #544000;
  --color-under-the-sun-900: #3b2c00;
  --color-under-the-sun-950: #251900;
}

SCSS

$under-the-sun: #efd100;
$under-the-sun-rgb: 239, 209, 0;
$under-the-sun-light: mix(#fff, $under-the-sun, 20%);
$under-the-sun-dark: mix(#000, $under-the-sun, 20%);

.element {
  color: $under-the-sun;
  box-shadow: 0 0 0 2px rgba($under-the-sun, 0.35);
}