\documentclass[]{scrartcl}
\usepackage[margin=20mm,nohead,nofoot,top=30mm,bottom=15mm,right=15mm]{geometry}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[ngerman]{babel}
\usepackage[babel]{csquotes}
\usepackage[]{booktabs}
\usepackage[]{tgheros}
\usepackage[]{tgschola}

\usepackage{pst-grad}
\usepackage[gridunit=cm]{eso-pic}
\newpsstyle{layout}{fillstyle=gradient,gradbegin=red,gradend=yellow,gradlines=500,gradmidpoint=1,linestyle=none}


\newcommand{\InitPage}{%
\setlength{\parskip}{0em}
\setlength{\parindent}{1em}
\AddToShipoutPicture{%
    \AtPageUpperLeft{%
        \psframe*[linecolor=yellow](\paperwidth,-2.5)
        \rput[l](5.54,-1.34){\Huge\textsf{\textbf{\color{gray!30}Wassersportverein (eineStadt) e.\,V.}}}
        \rput[l](5.51,-1.31){\Huge\textsf{\textbf{\color{black}Wassersportverein (eineStadt) e.\,V.}}}
    }
}%
}%initpage




\begin{document}
\InitPage
\section{Allgemeiner Teil}
\end{document}