I used createdRow Function and solved my problem
$('#result1').DataTable( {
data: data['firstQuery'],
columns: [
{ title: 'Shipping Agent Code' },
{ title: 'City' },
{ title: 'Delivery Zone' },
{ title: 'Total Slots Open ' },
{ title: 'Slots Utilized' },
{ title: 'Utilization %' },
],
"columnDefs": [
{"className": "dt-center", "targets": "_all"}
],
"createdRow": function( row, data, dataIndex){
if( data[5] >= 90 ){
$(row).css('background-color', '#F39B9B');
}
else if( data[5] <= 70 ){
$(row).css('background-color', '#A497E5');
}
else{
$(row).css('background-color', '#9EF395');
}
}
} );