Years ago when we had cats, my husband suggested calling them Rimsky-Korsakov and Mussorgsky. Yes, really!
I persuaded him that there was no way I was shouting those names across the road at night!
One was tabby and white and we called him Nutmeg (grate a whole nutmeg and you will see that the inside is sort of tabby) and the other was called Juniper (black and white, with a little brown mottled in the black).
It seemed to suit them - they came when they were called, anyway.
My sister's cats are called Archie and Rosie.
Whatever you decide, I am sure they will be adorable, and I envy you!