<div class="flag intersex" role="img" aria-label="Intersex Pride Flag. A yellow flag with a purple ring in the center"></div>

.flag {
  width: 80vmin;
  aspect-ratio: 70 / 45;
}

.flag.intersex {
  background: radial-gradient(circle, gold 24.5%, darkviolet 25% 34%, gold 34.5%)
}