Color Rush was a show that tried to do way more worldbuilding than was necessary for the short time frame they had. However, they did take an interesting soulmate AU idea and turn it into something a bit darker.

The concept of the show revolves around certain people that are colorblind (called monos) that can only see in shades of gray and their "probes," which are certain people that can allow them to see color. However, monos have been convicted in crimes revolving around trying to meet and stay near their probe, as seeing colors doesn't last forever if you're not with them.

Taking the idea of colorblindness until meeting a soulmate and turning it on its head to create a much more dramatic version was a great idea that could have been executed a bit better. I think that the show tried to expand on the idea of monos and probes a bit too much, and it just ended up being too confusing and took away from the relationship between the main character. Still a fun little watch though.