Circle with three different border colors

Answer 1

Try this with css Pseudo-elements three different border colors(same length)

* {
  box-sizing: border-box
}
body {
  margin: 0;
  padding-top: 20px;
  background: skyblue;
  transition: background 0.6s ease
}
body:hover {
  background: #CBE0E8
}
div {
  box-shadow: inset 0 0 3px 0px #484848, 0 0 6px 0px #484848;
  width: 150px;
  height: 150px;
  margin: 0 auto;
  border-radius: 50%;
  border-top: 10px solid green;
  border-right: 10px solid red;
  border-bottom: 10px solid red;
  border-left: 10px solid green;
  transform: rotate(15deg);
  position: relative
}
div:before, div:after {
  content: "";
  position: absolute;
  left: -10px;
  top: -10px;
  width: 100%;
  height: 100%;
  border-radius: 50%;
}

div:before {
  border-top: 10px solid yellow;
  border-right: 10px solid transparent;
  border-bottom: 10px solid transparent;
  border-left: 10px solid transparent;
  transform: rotate(60deg)
}
div:after {
  border-top: 10px solid yellow;
  border-right: 10px solid transparent;
  border-bottom: 10px solid transparent;
  border-left: 10px solid transparent;
  transform: rotate(30deg)
}