In case you would like the flag to fly...
\documentclass[tikz, border=5pt]{standalone}
\usetikzlibrary{shapes.symbols,positioning}
\definecolor{rot}{HTML}{e40303}
\definecolor{xorange}{HTML}{FF8c00}
\definecolor{gelb}{HTML}{FFed00}
\definecolor{gruen}{HTML}{008026}
\definecolor{blau}{HTML}{004dFF}
\definecolor{lilla}{HTML}{750787}
\begin{document}
\begin{tikzpicture}[x=0.026458cm, y=0.026458cm, tape bend height=20, shape=tape, text width=750, minimum height=70, inner sep=0pt, node distance=-1pt]
\node (rot) [fill=rot] {};
\node (oren) [fill=xorange, below=of rot] {};
\node (melyn) [fill=gelb, below=of oren] {};
\node (gwyrdd) [fill=gruen, below=of melyn] {};
\node (glas) [fill=blau, below=of gwyrdd] {};
\node [fill=lilla, below=of glas] {};
\end{tikzpicture}
\end{document}

Or, more concisely using a \foreach
loop:
\documentclass[tikz, border=5pt]{standalone}
\usetikzlibrary{shapes.symbols,positioning}
\definecolor{rot}{HTML}{e40303}
\definecolor{xorange}{HTML}{FF8c00}
\definecolor{gelb}{HTML}{FFed00}
\definecolor{gruen}{HTML}{008026}
\definecolor{blau}{HTML}{004dFF}
\definecolor{lilla}{HTML}{750787}
\begin{document}
\begin{tikzpicture}[x=0.026458cm, y=0.026458cm, tape bend height=20, shape=tape, text width=750, minimum height=70, inner sep=0pt, node distance=-1pt]
\node (rot) [fill=rot] {};
\foreach \i [remember=\i as \j (initially rot)] in {xorange,gelb,gruen,blau,lilla}
\node (\i) [fill=\i, below=of \j] {};
\end{tikzpicture}
\end{document}
Adjusting the height a little:

\documentclass[tikz, border=5pt]{standalone}
\usetikzlibrary{shapes.symbols,positioning}
\definecolor{rot}{HTML}{e40303}
\definecolor{xorange}{HTML}{FF8c00}
\definecolor{gelb}{HTML}{FFed00}
\definecolor{gruen}{HTML}{008026}
\definecolor{blau}{HTML}{004dFF}
\definecolor{lilla}{HTML}{750787}
\begin{document}
\begin{tikzpicture}[x=0.026458cm, y=0.026458cm, tape bend height=20, shape=tape, minimum width=750, minimum height=100, inner sep=0pt, node distance=-1pt]
\node (rot) [fill=rot] {};
\node (oren) [fill=xorange, below=of rot] {};
\node (melyn) [fill=gelb, below=of oren] {};
\node (gwyrdd) [fill=gruen, below=of melyn] {};
\node (glas) [fill=blau, below=of gwyrdd] {};
\node [fill=lilla, below=of glas] {};
\end{tikzpicture}
\end{document}
pride