Even if Chinese there should be a standard conversion chart, although it may not be as easy as car paints.
IIRC there are several main standards, the ISO standard, the Federal standard and the various other ones, but good paint supplier should be able to match but it will likely be beyond the Halfords etc who tend to go mainly by the registration number/car number and have their DB set up basically for car and motorbike colours commonly used in the UK.
Possibly look for a company that does custom car/motorbike spray jobs and give them a ring/email, I suspect a lot of them may have a better ability to colour match odd paints/non standard colours than a general place like Halfords.