With respect to output image file format/protocol (rather than image colour profile, which I think cspear was referring to) Poser must surely conform to certain accepted standards.

If it didn't, our browsers would not even be able to display the images, and external apps such as Gimp, Photoshop etc. would not be able to open them.

"If I were a shadow, I know I wouldn't like to be half of what I should be."
Mr Otsuka, the old black tomcat in Kafka on the Shore (Haruki Murakami)