TobiasBg on "[Plugin: TablePress] Table color error?"

Hi,

yes, that's possible, and you actually have used the necessary commands already, you'll just need to combine them :-)
It works just like setting the width of a column, but instead changing the background color:

.tablepress-id-3 .odd .column-2,
.tablepress-id-3 .even .column-2 {
	background-color: #ff0000;
}

Regards,
Tobias