CSS username colors only working for admin/moderators?

So I was able to figure out how to color usernames with the following:

.first.new-user:not(.staff) a {
    color: #00b0ff;
}

.names>span a {
    color: #ffd966;
    outline-offset: -1px;

}

Problem is, the second part of the code colors all usernames that aren’t new or staff (admin, mod). I want to try to figure out how to make it so it targets my trust_level_3 group so that one is specifically a different color. Is there any way to do this?