#FD9B79

CSS

:root {
  --flash-in-the-pan: #fd9b79;
  --flash-in-the-pan-rgb: 253 155 121;
  --flash-in-the-pan-oklch: oklch(0.783 0.127 39.8);
}

.element {
  color: var(--flash-in-the-pan);
  background-color: hsl(15 97% 73%);
  border-color: oklch(0.783 0.127 39.8);
}

Tailwind CSS v4

@theme {
  --color-flash-in-the-pan: #fd9b79;
  --color-flash-in-the-pan-50: #ffead9;
  --color-flash-in-the-pan-100: #ffdbc7;
  --color-flash-in-the-pan-200: #ffc3aa;
  --color-flash-in-the-pan-300: #efa284;
  --color-flash-in-the-pan-400: #dd8363;
  --color-flash-in-the-pan-500: #cb6440;
  --color-flash-in-the-pan-600: #ab5637;
  --color-flash-in-the-pan-700: #8a442c;
  --color-flash-in-the-pan-800: #673120;
  --color-flash-in-the-pan-900: #482115;
  --color-flash-in-the-pan-950: #2f1007;
}

SCSS

$flash-in-the-pan: #fd9b79;
$flash-in-the-pan-rgb: 253, 155, 121;
$flash-in-the-pan-light: mix(#fff, $flash-in-the-pan, 20%);
$flash-in-the-pan-dark: mix(#000, $flash-in-the-pan, 20%);

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