Hi and welcome to the forum!
Yes, panthers will not usually start showing their colors for at least a couple months of age, and most don't get lost of color until about 6 months. So it's perfectly normal for your baby panther to be just tans and browns right now.
That's a very small panther to get, most breeders will not sell them until age 2.5-3 months. They are still very delicate that little.