Navy they are gorgeous! I love the pictures. Just something else I wanted to add about litter. You can use rabbit pellets as litter, and they absorb really well, the odor will still be there though, but I change out my litter pan just about everyday. My furkids are out of there cage from about 10 am till about 8 pm everyday.
Another good litter is Wood stove pellets, which I am gonna start using very soon. Both of these litters are cheaper than other litters I have found. Corn cob bedding can sometimes carry mites, which can cause severe itching for any pet, and would need to be seen by the vet.