zhdo.space/static/style.css

.bg-lightblue {
  --bs-bg-opacity: 1;
  background-color: #d6d9e2;
}

.bg-darkblue {
  --bs-bg-opacity: 1;
  background-color: #00305c;
}

.bg-darkerblue {
  --bs-bg-opacity: 1;
  background-color: #1d2f4c;
}