Exporting selected as any type of image color issues

I'm referring to the logo in the background (i used the Transparency Tool to obtain it). In the second image (exported) it has different colors.
Obviously first i tried to find out in the forum if there were some similiar issue to refer to. So i tried changing the profile colours, setting some parameters and trying to export again and againd but without any results
I'm afraid i'd need some "dummy" guide to workaround this

we need some information about the content. For example, if it was a lens, what kind of lens are you using. Also, if export s RGB or CMYK, and if you inclusde or not the color profile on your document. The color profile that you use on your document could make a diferrence too.