%% 
%%  A DANTE-Edition example
%% 
%%  Beispiel 03-01-11 auf Seite 116.
%% 
%%  Copyright (C) 2010 H. 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.
%% 

%%Run also: >>  << 
% Show page(s) 1

\documentclass[]{article}
\pagestyle{empty}
\setlength\textwidth{146.59192pt}
\setlength\parindent{0pt}

\usepackage{colortbl}
\setlength\arrayrulewidth{2pt}
\arrayrulecolor{red}\doublerulesepcolor{blue}

\begin{document}
\begin{tabular}{||c|||c|||c||}\hline\hline
  Eins & Zwei & Drei\\\hline\arrayrulecolor[gray]{0.9}
  A    &   B  & C   \\\hline\hline
   uno & due  & tre \\\hline\hline
\end{tabular}
\end{document}