OT, but not much, if you google for "petrol blue" you will find a lot of colours that many people would call "green" and if you look for "petrol green" you will

OT, but not much, if you google for "petrol blue" you will find a lot of colours that many people would call "green" and if you look for "petrol green" you will find a lot of colours that many people would call "blue". We used to have a car of the exact shade of green (or blue) that people called alternatively green or blue, often only because of different lighting. https://en.wiktionary.org/wiki/petrol_blue https://en.wiktionary.org/wiki/petrol_blue