Colors on screen can be rather subjective due to lighting, angles and filters on the camera lenses. The only way to accurately ascertain colors is to have both watches side by side under the same lighting condition. The comparison will only be meaningful that way.IIRC the dial color of @legend's gen looked similar in pics but it had more sunburst.
I think reps should and can be enjoyed on their own, the level to which they are manufactured these days is impressive. Put it another way: if a watch costing say $30k can be replicated perfectly for $500, then the price difference between the two can be attributed to brand value, provenance and pedigree, and the product value of the gen will be $500. This is however not the case as there are many details on the gen, subtle and small as they are, which are not replicated on the rep. They may or may not be noticeable in real life but they exist for sure. So the gen owner pays $30k for his watch and the rep owner pays $500 for his, which looks and feels (subjectively) between 80-95% of the gen one. There is already a lot of value in the rep in this aspect and there is no need to compare the gen and rep further. Visuals aside, gen luxury watch ownership is far beyond owning a luxury watch, but rather the holistic experience of knowing your watch has Swiss provenance and history and the satisfaction of the ownership experience across its spectrum. This can never be replicated. How much that is worth is subjective though and for those who don’t really care or mind not enjoying this spectrum, then owning a rep is good enough as far as having a nice watch on the wrist for whatever purpose which suits the wearer.
So when someone asks “how close is this to gen?”, it depends on how far you wish to consider the experience of gen ownership. Most wearers take themselves out of the equation when it comes to comparisons but for me that is a significant factor in pulling off any watch at all. Confidence and attitude are key, far more important than the shape or size of tapisseries on the dial.