You could just use :after pseudo-element with content: '•••' and transform: rotate. Note that this is the bullet HTML special character •, or \u2022.
div {
position: relative;
background: #3F3C53;
width: 50px;
height: 50px;
color: white;
border-radius: 50%;
box-shadow: 0px 0px 15px 1px #4185BC;
margin: 50px;
}
div:after {
content: '•••';
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%) rotate(90deg);
font-size: 15px;
letter-spacing: 4px;
margin-top: 2px;
}
<div></div>