I have this table and would like to change the color of the cells. I have defined the colors "Orange", "DarkGrey", and "lightGrey". I made the top title row in orange, and would like the remaining cells in the first column to be dark grey, and the remaining cells in every other column be light grey. How can I do this?

```
\centering

\begin{tabularx}{1\textwidth} { 
  | >{\centering\arraybackslash}X 
  | >{\centering\arraybackslash}X 
  | >{\centering\arraybackslash}X | }

  \hline

  \rowcolor{Orange}\multicolumn{3}{|c|}{\textcolor{white}{\textbf{Title}}} \\

 \hline

 item 11 & item 12 & item 13 \\

 \hline

 item 21  & item 22  & item 23  \\

\hline

\end{tabularx}

```