\documentclass{report}

\usepackage{hyperref}
\hypersetup{
    colorlinks,
    citecolor=red,
    filecolor=green,
    linkcolor=blue,
    urlcolor=orange
}

%Show labels: after other packages
%As late as possible
\usepackage[right]{showlabels}
%draft tro turn off
%\usepackage[draft]{showlabels}


\begin{document}
   \tableofcontents

   Run \LaTeX~ twice!!
   \clearpage
   \chapter{Introduction}
   \label{chap:intro}


   \clearpage
   \chapter{Numbers}
   \label{chap:numbers}
   Numbers

   \clearpage
   \chapter{Vectors}
   \label{chap:vectors}
   Vectors

   \clearpage
   \chapter{Matrizes}
   \label{chap:matrizes}

   Matrizes. Vectors in Chapter \ref{chap:vectors}

   Numbers in \hyperref[chap:numbers]{Chapter }\ref{chap:numbers},

\end{document}
