As in the pictures, you can only see the RGB ring on the suction side; on the pressure side, where the air flows out, there is no continuous RGB ring.
However, the ring on the suction side can be seen indirectly through the rotating rotor blades.

I have a Lian Li dynamic XL, and have installed radiators at the bottom and top, whereby cold air is sucked in at the bottom and warm air flows out at the top. Accordingly, I had to mount the lower fans "upside down". I like it very much so far, the more indirect lighting makes it less obtrusive in my eyes, and with the cool sticker with a mountain top it is mega stylish.

So that you can still see the RGB