Why do I experience the richness of blue

Because of something that your brain does. When your brain is turned off, you don't experience blue anymore. If something breaks the circuitry of the information processing machine in your skull, you don't experience blue anymore.

It really sounds like the non-nonsensical arguments for God. Either God is this super abstract meaningless entity that could be described by the word 'universe', or God is some magical, too specific thing that contradicts our scientific understanding of the universe.

That's the same as this 'Hard Problem'. The 'Hard Problem' is either so extremely ill defined and abstract that it is meaningless (i.e. appeal to ignorance) and could be replaced by the word 'perception', or it is a way too specific magical discussion on dualism that plugs into a ghost world.

If you have another way to describe the 'Hard Problem', I would really like to know, because I really don't understand what people are trying to describe when talking about it.