#cal {
    background-color:#369;
}
#daynames {
    color: #ccc;
    background-color: #69c;
    border-right-color: #69c;
}

.cal-inner td {
    color: #00f;
    background-color: #fff;
}
.cal-inner td.ym {
    color: #fff;
    background-color:#69c;
}