Of course not, it all depends on what kind of color blindness some people have got. Generally speaking, there are several basic kinds of color blindness.
First, Red and green color blindness is the most common one. For this kind of people, they can not differentiate between red and green. And then, for Blue color blindness people, they can not distinguish both blue and yellow. For them, it will be like white or gray. For color blindness people, it is easy to have poor visual acuity and is extremely sensitive to light. So it is kind of dangerous diseases. for the treatments, they should just go and see the eye doctor, and maybe have some surgeries.