What type of Chestnut?

[WhWRabbitry]

This kit is from our current Mini Lop litter.
The Mom is a broken black gold tipped steel and the Dad a Chestnut Agouti.

There are 2 chestnuts in the litter of 6. This one is darker than the other one. I know there are different Chestnut color varieties. I'm not accustomed to the darker shade this one is. I do think these pictures show the color a tad darker than it actually is.
What is it?
Thank you, as always!

 

[Zass]

Just a slightly darker chestnut.

 

[WhWRabbitry]

Just a slightly darker chestnut.

Ha. Thank you! I have now shown my lack of knowledge (again). I guess I've just never seen a darker one so I thought surely there was some special name.

 

[Dood]

There is for lighter chestnuts in some breeds

"Copper" in Satins are dark red chestnut with a lot of Rufus

"Sandy" in Flemish are a pale washed out chestnut that looks like sand