@keyframes hue_rotate {
  from {
    filter: hue-rotate(0deg) blur(100px) saturate(23.5) contrast(0.8);
  }
  to {
    filter: hue-rotate(360deg) blur(40px) saturate(1.5) contrast(8.5);
  }
}

.hue_rotate {
  animation: hue_rotate 10101ms ease-in-out 0s infinite alternate;
}