Hello Aspirant,

As per the information brochure of WBJEE 2022 available on the official website as given below, there is no any point defining the color quality of photograph so it is quite difficult to guide you with such accuracy but it is recommended that you should upload only colored photograph in the prescribed specifications, however now this thing is of no use because application process has already ended and even the Admit cards are also out now, so whatever photograph you have uploaded now continue with it until any issue arises (chances are less for any issue)

https://wbjeeb.in/wbjee

I hope this information helps you.

Good Luck!!