# How to make the book title within the page colored?

I color a page with tikzpicture and I want the book title can be placed at the center of the page colored. But when I write the code

\documentclass{book}
\usepackage[dvipsnames]{xcolor}
\usepackage{tikz}

\newlength\amount
\setlength{\amount}{0.33\paperheight}
\begin{document}
\maketitle
\begin{tikzpicture}[remember picture,overlay]
\fill[green] (current page.north west) rectangle ([yshift=-\amount]current page.north east);
\fill[yellow] ([yshift=-\amount]current page.north west) rectangle ([yshift=-2\amount]current page.north east);
\fill[red]([yshift=-2\amount]current page.north west) rectangle ([yshift=-3\amount]current page.north east);
\end{tikzpicture}
\end{document}


the book title begin a new page.

\maketitle automatically inserts a \newpage. To prevent this, we can do the same as shown in https://tex.stackexchange.com/a/86255/143325, i.e. locally override the definition of \newpage so that it does nothing.

Note that the tikzpicture has to come before the \maketitle or it will overlay the text.

\documentclass{book}
\usepackage[dvipsnames]{xcolor}
\usepackage{tikz}