I don't have to imagine it, I live in California.
Top federal income tax: 37%
Top California income tax: 13.3%
Federal Medicare tax: 1.45%
Additional federal medicare tax*: 0.9%
The "additional" Medicare tax is only on whatever income is over $200k/$250k for single/joint filers. Call it "0.55% effective".Adds up to 52.3%.
There's also a sizeable additional capital gains tax for three lucky ones who live in California.