HI,
Yes you can make this change so please put some css at
Admin -> Theme Options -> General -> Custom Css
/* FOR FIRST TAB 1 */
ul.ui-tabs-nav li.ui-state-default a#ui-id-1{background-color:#ffffff;color:#000000} /*Default State*/
ul.ui-tabs-nav li.ui-tabs-active a#ui-id-1{background-color:#000000;color:#ffffff}/*Active State*/
/* FOR FIRST TAB 2 */
ul.ui-tabs-nav li.ui-state-default a#ui-id-2{background-color:#ffffff;color:#000000} /*Default State*/
ul.ui-tabs-nav li.ui-tabs-active a#ui-id-2{background-color:#000000;color:#ffffff}/*Active State*/
/* FOR FIRST TAB 3 */
ul.ui-tabs-nav li.ui-state-default a#ui-id-3{background-color:#ffffff;color:#000000} /*Default State*/
ul.ui-tabs-nav li.ui-tabs-active a#ui-id-3{background-color:#000000;color:#ffffff}/*Active State*/
You can change the background-color code and color code as you want