I can't do it but maybe you can find someone to work on that photo for you. Search the internet, there are ways to find the colour in b/w

I know there is definitely software that can add colour to black and white photos, but it may or may not be the real colours of the photos subject. For example, someone might be able to add colour to your photo and give your great-great-great grandmother a beautiful red dress, but in reality she was wearing a purple dress. I think it is impossible to find out the actual colours of a black and white photo. Best of luck!!

There are programs out there that can colorize B & W photos.

I can try to colorize it if you want. You can see some photography I've done here: https://500px.com/leylight. Let me know if you wanna try.

can ask a colorblind person, they can differentiate between the incredibly large grayscale color corresponds to the gradient of each thing

How did they do this? maybe you can do the same: https://www.boredpanda.com/colorized-history-black-and-white-pictures-restored-in-color/

Actually there are several people who colorize black and white pictures quite successfully. Google it. :)

Actually you can. Let people who can colorize bw photos help you. Try imgur/reddit, lot of helpful people there ;-)

Actually you can. Let people who know how to colorize photos process your photo. Try imgur/reddit, a lot of helpful people there! ;-)