Conditonal formatting - filter issue

There are several ways you can do this.

One is to create a helper column in the "tabel" sheet, using the formula  (and copy down)

=match(A2,Names!A:A,0)

If a match for the name is found, the formula will return a number. You can now use conditional formatting to look at this helper column. Select A2 to A7 and create a rule that uses a formula and let the formula be

=isnumber($C2)

Then select a format.

Another option is to do the match in the conditional format formula. Select A2 to A7 and create a rule with a formula that goes like this

=isnumber(match($a2,Names!$A:$A,0))

and select a format.

You should avoid applying the conditional format to the whole column, because that can slow the spreadsheet down. In the Conditional Formatting Rules Manager you can set the range that the format should apply to. 

If you are in Europe, your system may use the semicolon instead of the comma in formulas. I'll attach the workbook with the formulas in place.