Quote: I agree, a picture with all chicks would be helpful. Otherwise, I would hold off on getting rid of it if it were me. This chick could be a leghorn. Leghorns are great layers, heat tolerant and grow combs early.
If you are worried that you won't end up with enough hens, I would get another chick but hold onto this one. If you end up with too many pullets, they are easy to find a home for and there are so many roosters looking for homes that it will be really hard to find a home for a chick.