.w3-signal-yellow {
  color: #fff;
  background-color: #f7ba0b;
}

.w3-signal-orange {
  color: #fff;
  background-color: #d4652f;
}

.w3-signal-red {
  color: #fff;
  background-color: #a02128;
}

.w3-signal-violet {
  color: #fff;
  background-color: #904684;
}

.w3-signal-blue {
  color: #fff;
  background-color: #154889;
}

.w3-signal-green {
  color: #fff;
  background-color: #317f43;
}

.w3-signal-grey {
  color: #fff;
  background-color: #9b9b9b;
}

.w3-signal-brown {
  color: #fff;
  background-color: #7b5141;
}

.w3-signal-white {
  color: #000;
  background-color: #f4f4f4;
}

.w3-signal-black {
  color: #fff;
  background-color: #282828;
}