Conic gradient
by schrodingers
HTML
<div>
</div>
CSS
body {
box-sizing: border-box;
overflow: hidden;
min-height: 100vh; /* height of the browser viewport */
display: flex;
justify-content: center;
align-items: center;
}
div {
width: 7rem;
height: 7rem;
position: absolute;
background: conic-gradient(
#fd004c,
#fe9000,
#fff020,
#3edf4b,
#3363ff,
#b102b7,
#fd004c);
border-radius: 50%;
}