#CC8F02

CSS

:root {
  --end-of-summer: #cc8f02;
  --end-of-summer-rgb: 204 143 2;
  --end-of-summer-oklch: oklch(0.692 0.144 78.2);
}

.element {
  color: var(--end-of-summer);
  background-color: hsl(42 98% 40%);
  border-color: oklch(0.692 0.144 78.2);
}

Tailwind CSS v4

@theme {
  --color-end-of-summer: #cc8f02;
  --color-end-of-summer-50: #fff2c7;
  --color-end-of-summer-100: #ffe3b2;
  --color-end-of-summer-200: #f5ce8d;
  --color-end-of-summer-300: #deaf5c;
  --color-end-of-summer-400: #cc9221;
  --color-end-of-summer-500: #b97700;
  --color-end-of-summer-600: #9c6500;
  --color-end-of-summer-700: #7d5000;
  --color-end-of-summer-800: #5e3a00;
  --color-end-of-summer-900: #422800;
  --color-end-of-summer-950: #2a1500;
}

SCSS

$end-of-summer: #cc8f02;
$end-of-summer-rgb: 204, 143, 2;
$end-of-summer-light: mix(#fff, $end-of-summer, 20%);
$end-of-summer-dark: mix(#000, $end-of-summer, 20%);

.element {
  color: $end-of-summer;
  box-shadow: 0 0 0 2px rgba($end-of-summer, 0.35);
}