I can see a little bit, but not enough to read print or drive. I am what the government deams legally blind.
The colors I can recognize prety well are dark blue, which is one of my favorites, and I can usually identify red, though I sometimes get red mixed with yellow and orange and vice versa. I also get white, light grey, and silver mixed up.
I can tell light colors from dark ones.
I am a braille reader and use a screen reader called Jaws to navigate the Internet.
I have trouble seeing steps that go down, which is why I have to use a cane everywhere I go. Steps leading up aren't as hard to see for me. It has to do with depth perception.
I was born blind, so I really don't know what I'm missing in terms of sight. I'm glad I was born blind rather than be born sighted and lose it due to some accident or illness. To me, I'd rather just not know what I am missing than to know and lose it all.
I hope that answers your question. Feel free to ask more if you wish.