How to use multiple colours in a single vertical line of a table?

Question

I have this table, based on this:

\documentclass{book}
\usepackage{colortbl}
\usepackage{hhline}
\begin{document}
\setlength{\arrayrulewidth}{2pt}
\begin{tabular}{|c|c|c|}
  \hline
   &  & \ \hline
   &  & \ 
    \hhline{
      >{\arrayrulecolor{yellow}} | 
      >{\arrayrulecolor{black}}  -
      >{\arrayrulecolor{yellow}} |
      >{\arrayrulecolor{black}}  -
      >{\arrayrulecolor{yellow}} |
      >{\arrayrulecolor{black}}  -
      >{\arrayrulecolor{yellow}} |
      >{\arrayrulecolor{black}} 
    }
   &  & \
    \hhline{
      >{\arrayrulecolor{yellow}} | 
      >{\arrayrulecolor{black}}  -
      >{\arrayrulecolor{yellow}} |
      >{\arrayrulecolor{black}}  -
      >{\arrayrulecolor{yellow}} |
      >{\arrayrulecolor{black}}  -
      >{\arrayrulecolor{yellow}} |
      >{\arrayrulecolor{black}} 
    }
   &  & \ \hline
\end{tabular}
\end{document}

I want the vertical lines in the third row to be yellow.

I have read this, but the colour affects to all the rows.

See tabularray, some interesting examples are on pages 10, 12 in package documentation. — Zarko, Jul 21 '22 at 15:54

score 2 · Answer 1 · answered Jul 21 '22 at 16:35

Example solution based on @Zarko comment:

\documentclass{book}
\usepackage{colortbl}
\usepackage{tabularray}
\begin{document}
\begin{tblr}{
vlines = {1,3,5}{red},
vlines = {2,4}{blue},
}
Alpha & Beta & Gamma & Delta \
Epsilon & Zeta & Eta & Theta \
Iota & Kappa & Lambda & Mu \
Nu & Xi & Omicron & Pi \
Rho & Sigma & Tau & Upsilon \
\end{tblr}
\end{document}

score 1 · Answer 2 · answered Jul 21 '22 at 16:35

Like this?

As I mentioned in the my comment, this can be relative simple done by use of tabularray package (I use version 2022C):

\documentclass[margin=3mm]{standalone}
\usepackage{xcolor}
\usepackage{tabularray}
\begin{document}
\begin{tblr}{colspec = {*{3}{Q[c]}},
             hline{2-Y} = {even}{black},
             hline{2-Y} = {odd}{yellow,leftpos = 0, rightpos = 0},
             hline{1,Z} = {black},
             vlines,
             }
    &   &   \
    &   &   \
    &   &   \
\end{tblr}
\end{document}

or this:

\documentclass[margin=3mm]{standalone}
\usepackage{xcolor}
\usepackage{tabularray}
\begin{document}
\begin{tblr}{colspec = {*{3}{Q[c]}},
             hline{2-Y} = {even}{black},
             hline{2-Y} = {odd}{yellow,leftpos = 0, rightpos = 0},
             hline{1,Z} = {black},
             vline{1,2,4} = {black}, vline{3} = {yellow},
             }
    &   &   \
    &   &   \
    &   &   \
\end{tblr}
\end{document}

score 0 · Answer 3 · answered Jul 21 '22 at 19:02

{NiceTabular} of the package nicematrix behaves as the classical environment {tabular} (of array) but creates also PGF/Tikz nodes under the cells, columns and rows. You can use Tikz do draw whatever rule you want with any Tikz style of line.

\documentclass{book}
\usepackage{nicematrix,tikz}
\begin{document}
\begin{NiceTabular}{cccc}[hvlines]
& & & \
& & & \
\CodeAfter
  \begin{tikzpicture} [line width = 1pt]
  \draw [red] (1-|1) -- (1-|2) (1-|3) -- (1-|4) ; 
  \draw [white] (2-|2) -- (2-|5) ;
  \draw [densely dash dot] (2-|2) -- (2-|5) ;
  \draw [blue,double] (1-|2) -- (3-|2) ;
  \end{tikzpicture}
\end{NiceTabular}
\end{document}

How to use multiple colours in a single vertical line of a table?

3 Answers3