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%%  Ein Beispiel der DANTE-Edition
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%%  2. Auflage
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%%  Beispiel 06-03-37 auf Seite 236.
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%%  Copyright (C) 2016 Herbert Voss
%%
%%  It may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
%%
%%  See http://www.latex-project.org/lppl.txt for details.
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% Show page(s) 1
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\documentclass[]{exaarticle}
\pagestyle{empty}
\setlength\textwidth{145.16928pt}
\setlength\parindent{0pt}
%StartShownPreambleCommands
\usepackage{colortbl}
\definecolor{gray70}{gray}{0.7}
\definecolor{gray90}{gray}{0.9}
%StopShownPreambleCommands
\begin{document}
\begin{tabular}{|>{\columncolor{gray70}[0pt]}c|
                >{\columncolor[rgb]{1,0,0}[0pt]}c|
                >{\columncolor{gray90}[0pt]}c|}
Eins & Zwei & Drei\\ A    & B    & C
\end{tabular}
\end{document}