Error while aligning text after a word

Question

I want to align text after some words. I followed this answer by @Torbjørn T. But there were error messages. Here is the code:
documentclass{report}

usepackage{xcolor}
usepackage{tabularx}

begin{document}
    begin{tabularx}{linewidth}{@{}lX@{}}
        textcolor{blue}{textit{Name of the Experiment:} & Frequency Stability Study of a Power System blah blah blah}
    end{tabularx}
end{document}

The error messages are as below:
line 9: Missing } inserted. end{tabularx}
line 9: Extra }, or forgotten endgroup. end{tabularx}
line 9: Missing } inserted. end{tabularx}
line 9: Extra }, or forgotten endgroup. end{tabularx}
line 9: Missing } inserted. end{tabularx}
line 9: Extra }, or forgotten endgroup. end{tabularx}
line 9: Overfull hbox (15.0pt too wide) in paragraph

How can this be solved?
I am using MiKTeX and PDFLaTeX.

nhck · Accepted Answer

Basically your problem is that you cannot open text color with textcolor{blue}{ and then start the next cell (with &). You have to close textcolor{blue}{} first then start the next cell.
Either you wanted do to the first column Name of the Experiment: in blue then you have to do it like this, and close the textcolor earlier:
documentclass{report}
usepackage{xcolor}
usepackage{tabularx}
begin{document}
begingroup
    begin{tabularx}{linewidth}{@{}lX@{}}
         textcolor{blue}{textit{Name of the Experiment:}} & Frequency Stability Study of a Power System blah blah blah
    end{tabularx}
end{document}

or you wanted to have all the text in the table blue. Then you wrap the table in a seperate group like this:
documentclass{report}
usepackage{xcolor}
usepackage{tabularx}
begin{document}
begingroup %%start wrapper group
    color{blue} %%assign textcolor

begin{tabularx}{linewidth}{@{}lX@{}}
    
         textit{Name of the Experiment:} & Frequency Stability Study of a Power System blah blah blah
    end{tabularx}
endgroup%%end wrapper group
end{document}

Have a look at the xcolor documentation - you can also change the background color of the rows.

Error while aligning text after a word

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