Wild rabbits are usually brown or a dark color. Snow hares are white in winter to blend in with the enviroment. If you are talking about domestic rabbits then it depends on the breed. There is a variety of colors!
The Easter rabbit is white.
Peter Rabbit has brown eyes.
no color is lucky or unlucky
They dont change color
The volcano Rabbit actually has black eyes.
white
Pink.
color
Changing color when snow falls.
The rabbits will be both colors. some the same color and some the other color all depends on which color is more dominant.
Changing color when snow falls
My rabbit's fur changes color when she sheds so I'm guessing it's normal