colours.tex

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% colours.tex
% An example demonstrating the use of the xcolor package to add colours
% https://github.com/mhyee/latex-examples/
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% LaTeX Preamble
% Load packages and set options as needed
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% Set the document class to "article"
% Pass it "letterpaper" option
\documentclass[letterpaper]{article}

% We don't need the special font encodings, but still
% good practice to include these. See:
%
% http://tex.stackexchange.com/questions/664/why-should-i-use-usepackaget1fontenc
% http://dsanta.users.ch/resources/type1.html
\usepackage[T1]{fontenc}
\usepackage{ae,aecompl}
% http://tex.stackexchange.com/a/44699
% http://tex.stackexchange.com/a/44701
\usepackage[utf8]{inputenc}

% Use Latin Modern, an improved version of the Computer Modern font
\usepackage{lmodern}

% Colours -- see xcolor documentation for more details
% x11names allows us to refer to over 300 colours by name
\usepackage[x11names]{xcolor}

% Define indigo as a custom colour
\definecolor{indigo}{RGB}{75,0,130}

% Define some macros for convenience
\newcommand{\red}[1]{\textcolor{red}{#1}}
\newcommand{\orange}[1]{\textcolor{orange}{#1}}
\newcommand{\yellow}[1]{\textcolor{yellow}{#1}}
\newcommand{\green}[1]{\textcolor{green}{#1}}
\newcommand{\blue}[1]{\textcolor{blue}{#1}}
\newcommand{\indigo}[1]{\textcolor{indigo}{#1}}
\newcommand{\violet}[1]{\textcolor{violet}{#1}}

\newcommand{\redbg}[1]{\colorbox{red}{#1}}
\newcommand{\orangebg}[1]{\colorbox{orange}{#1}}
\newcommand{\yellowbg}[1]{\colorbox{yellow}{#1}}
\newcommand{\greenbg}[1]{\colorbox{green}{#1}}
\newcommand{\bluebg}[1]{\colorbox{blue}{#1}}
\newcommand{\indigobg}[1]{\colorbox{indigo}{#1}}
\newcommand{\violetbg}[1]{\colorbox{violet}{#1}}

% Don't indent paragraphs
\usepackage{parskip}

% Disable page numbering
\pagestyle{empty}


% Begin the actual typesetting, by starting the "document" environment
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\begin{document}

% Making the text bold so it's easier to see the colours
\textbf{
\red{Richard} \orange{Of} \yellow{York} \green{Gave} \blue{Battle} \indigo{In}
\violet{Vain}
}

\red{Using a macro} is much easier than \textcolor{red}{directly using the
command}, or the {\color{red}other direct way}.

We can even use background colours: \redbg{R}\orangebg{o}\yellowbg{y}
\greenbg{G}. \bluebg{B}\indigobg{i}\violetbg{v}

\end{document}