.ui-datepicker td.blue a {
        background-color: blue;
        color: #fff;
}
.ui-datepicker td.red a {
        background-color: red;
        color: #fff;
}

.ui-state-default,
.ui-widget-content .ui-state-default,
.ui-widget-header .ui-state-default,
.ui-button,
html .ui-button.ui-state-disabled:hover,
html .ui-button.ui-state-disabled:active {
        border: 1px solid transparent;
        background: #f6f6f6;
        font-weight: normal;
        color: #454545;
}

.ui-state-highlight,
.ui-widget-content .ui-state-highlight,
.ui-widget-header .ui-state-highlight {
        border: 1px solid transparent;
        background: #ef6820;
        color: #fff;
}