problem coloring text in a table view data cell

After an exhaustive search through these posts I found what I thought would work, and seems to have for the previous poster. However when I try this I get an error.

set theDataRow to make new data row at end of data rows of theDataSource
set contents of data cell "file_name" of theDataRow to name of (info for (POSIX file (theItem as string))) as string
set text color of data cell "file_name" of theDataRow to {30000, 0, 0}

setting the contents works great but when I try and set the color I get…

"Can’t make text color of data cell “file_name” of data row id 15 of data source 11 into type reference.

what am I missing?

Still looking for a solution to this. In the hope a bump in the list might help find fresh eyes.
I’ve found the question asked many times but never a solution. Perhaps it can’t be done?