Was Paul Legally Able To Call Ananias A Whitewashed Wall In Acts 23:1-5?

Acts 23:1-5 (KJV) - And Paul, earnestly beholding the council, said, Men and brethren, I have lived in all good conscience before God until this day. And the high priest Ananias commanded them that stood by him to smite him on the mouth. Then said Paul unto him, God shall smite thee, thou whited wall: for sittest thou to judge me after the law, and commandest me to be smitten contrary to the law? And they that stood by said, Revilest thou God's high priest? Then said Paul, I wist not, brethren, that he was the high priest: for it is written, Thou shalt not speak evil of the ruler of thy people.

Acts 23:1-5 explained with historical context.

Courtesy of Testify
https://youtu.be/CkjdqvlLEZw?t=255