Here’s a color calculator if you’re really curious. Seems like Chestnut and Black are the two most likely colors.
http://www.ephiny.net/tim/pedigrees/color_calc.php
This calculator is a really cool tool, I used it back when I was in FFA to try and decode my rabbits’ genes. I didn’t put it in last night because I had to re-find it, but rabbit colors are more complicated than the simple 4x4 punnet square you learn in biology. For example a “blue” coat is just a “black” coat with two recessive dilution genes.
For example, I was in FFA my project was running a rabbity and showing my rabbits. I have a really large interest in genetics so I decided to decode my founding dam’s color genetics.
She is a chocolate doe who has the coat color genetics of:
aa bb Cc(h) Dd Ee enen
But another rabbit who is also chocolate could have the genetics of:
aa bb CC DD EE enen
Or
aa bb Cc Dd EE enen
etc.
This is because the color chocolate relies on
3 recessive genes and 3 dominate genes. Those 3 dominate genes could have almost any other gene coupled with them and not change the color.
Your black bunny for example has the coat genetics of:
aa B_ C_ D_ E_ enen
It’s color is controlled by 2 recessive genes and 4 dominate genes. So, black is both dominate and recessive depending on what gene you look at. (The blank spots are unknown genetics, since you only need one dominant copy, you’d have to look at the bunny’s family tree to figure out the rest.)
I hope you play around on the website and learn more about genetics! They are really interesting and fun!