You need to set the value of \fboxsep
to zero to remove the extra margin:
{\setlength{\fboxsep}{0pt}\colorbox{<color>}{<text>}}
You don't need the outer braces if it is the whole cell, however then I would use the macros of the colortbl
or colortab
packages. The new tabu
package also provides a lot of new features for tables, including a lot of different color features, but it might be an effort to change to this package.
You can also use the adjustbox
package for this:
\adjustbox{cframe=<color>}{<text>}
which draws a tight frame as well.
It has also an extended syntax which allows to set the rule thickness, inner separation and outer margin:
\adjustbox{cframe=<color> <thickness> <inner sep> <outer margin>}{<text>}
The margin can be negative and if it is -(thickness+inner sep) the original size is kept, e.g.:
\adjustbox{cframe=blue {\fboxrule} {\fboxsep} {-\fboxrule-\fboxsep}}{<text>}
(The { }
around the macros are there to preserve the space behind them.)
Best Answer
Do you thing on something like this:
If you wish in red (or other selected color) entire table (with lines), than before table just put command
\color{red}