PHPExcel - Format style cell background color, text color

$objPHPExcelSheet->getStyle('A1')->applyFromArray(
    array(
        'fill' => array(
            'type' => PHPExcel_Style_Fill::FILL_SOLID,
            'color' => array('rgb' => 'FF0000') # Red sample
        ),

        'font' => array(
            'color' => array('rgb' => '808080')
        )
    )
);