#F79771

CSS

:root {
  --flash-in-the-pan: #f79771;
  --flash-in-the-pan-rgb: 247 151 113;
  --flash-in-the-pan-oklch: oklch(0.768 0.127 42.2);
}

.element {
  color: var(--flash-in-the-pan);
  background-color: hsl(17 89% 71%);
  border-color: oklch(0.768 0.127 42.2);
}

Tailwind CSS v4

@theme {
  --color-flash-in-the-pan: #f79771;
  --color-flash-in-the-pan-50: #ffead8;
  --color-flash-in-the-pan-100: #ffdbc6;
  --color-flash-in-the-pan-200: #ffc4a8;
  --color-flash-in-the-pan-300: #eea281;
  --color-flash-in-the-pan-400: #dd8460;
  --color-flash-in-the-pan-500: #ca653c;
  --color-flash-in-the-pan-600: #ab5634;
  --color-flash-in-the-pan-700: #894529;
  --color-flash-in-the-pan-800: #66311e;
  --color-flash-in-the-pan-900: #482113;
  --color-flash-in-the-pan-950: #2f1006;
}

SCSS

$flash-in-the-pan: #f79771;
$flash-in-the-pan-rgb: 247, 151, 113;
$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);
}