Title page using TikZ

\node [name=colourbar,
anchor=base,
fill=blue!40,
minimum width=\paperwidth,
minimum height=1cm] at (midpoint){};

\node [
fill=blue!40,
text = white,
xshift=1cm] at (midpoint){\Large{\textsf{Departement Industriële Wetenschappen}}};

You can't use xshift=1cm directly because the rectangle is also moved.

You can add \hspace{1cm} before \Large - it's not so beautiful but works.