Packages   xcolor

The xcolor Package

Documentation xcolor
Categories color
Description

Extends LaTeX's color capabilities.

Options
\usepackage[
    dvipsnames                      % Adds a number of handy color names, including `ForestGreen`, `RawSienna`, etc., as described on page 42 of the documentation.
    svgnames                        % Adds a number of useful color names, such as `DarkRed`, `DarkSlateBlue`, etc., as described on page 42 of the documentation.
]{xcolor}                           % extends color options
Examples
There are two ways to change the color of text. To alter the color 
in a small block, you can use \textcolor{DarkRed}{the textcolor 
command}. To change the color more generally, use \color{DarkGreen}
a color command, which stays in effect until you exit the current scope.