This beamer theme ZMBZFMK
, which is defined in a file called beamerthemeZMBZFMK.sty
, uses a specific \colortheme
that is loaded using the file beamercolorthemeZMBZFMK.sty
. And this files defines the green color used for the boxes and headlines on the frames with \definecolor{tublue}{RGB}{0,152,103}
.
Thus, you may want to redefine this color directly after having loaded this beamer theme. So, in your preamble, look for the following line:
\usetheme{ZMBZFMK}
and add this line after it (which overrides the default definition of the color tublue
which is actually the green you want to change):
\definecolor{tublue}{RGB}{0,144,69} % decimal representation of #009045
Note that this will not change the color of the logo, for obvious reasons.