# tabularx and pmatrix alignment issue

Why are the following entries in the table not vertically aligned? I see that the first column is too low and the second column is too high.

Here is my code:

\documentclass{article}
\usepackage{tabularx,amsmath,color}

\begin{document}

\begin {centering}
\huge{\textbf{Homogene Transformationen}} \\[20pt]
\end{centering}

\noindent
\begin{tabularx}{\textwidth}{XX}

\hline

\color{red}{\textbf{Translation}}

&

T = $\begin{pmatrix} 1 & 0 & d_x \\ 0 & 1 & d_y \\ 0 & 0 & 1 \end{pmatrix}$\\

\hline
\end{tabularx}

\end{document}

• It's very unfortunate that MathJax forces one to write \color{red}{text}, which is utterly wrong in LaTeX and still has no \textcolor command. – egreg Jan 11 '16 at 21:45
• @egreg I agree it should be the default (I tried to convince them) but mathjax has had a configuration to use better color for ages docs.mathjax.org/en/latest/tex.html?highlight=latex#color you could put in a feature request for math,sx to use that – David Carlisle Jan 11 '16 at 22:43

\color does not take the text to be coloured in an argument, you should use
 \textcolor{red}{\textbf{Translation}}

 \color{red}{\textbf{Translation}}

As noted in the color package documentation \color at the start of a table cell can affect the positioning, use of \textcolor starts the paragraph before the colour change so avoids that problem.