I have this problem with my modelling, I am in the middle of modelling and I am on a time limit. After modelling my hand as a separate object from the body I cannot join the hand and body without running into this color problem. Whenever I join the two objects the object that I select first turns a darker shade. For example, if I select the hand first and then body second when I press join the hand will lose its modifiers (Which I actually don't mind, I want it to have the body's modifiers) and will turn a darker shade. Same vice versa. I've attached images to give an example.
I'm not sure what may have caused this or how to fix it. Is there way I can possibly fix this?