/* In the component.css or app.css add Icon Color styles */
.material-icons.color_green { color: #00FF00; }
.material-icons.color_white { color: #FFFFFF; }
/* In the component.html set the icon class*/
<mat-icon class="material-icons color_green">games</mat-icon>
<mat-icon class="material-icons color_white">cloud</mat-icon>