CPUC reg. was that it had to be visible from 50 ft away in daylight.
Your tint is perfectly legal. However, I suspect you can be pegged for the trade dress violation without a leg to stand on.
"TNC vehicles must display consistent trade dress (i.e., distinctive signage or display on the vehicle) when providing TNC services that is sufficiently large and color-contrasted as to be readable during daylight hours at a distance of 50 feet. The trade dress must be sufficient to allow a passenger, government official, or member of the public to associate a vehicle with a particular TNC (or licensed transportation provider). Acceptable forms of trade dress include, but are not limited to, symbols or signs on vehicle doors, roofs, or grills. Magnetic or removable trade dress is acceptable."