My rabbits eye color?

[Lumibun]

So when I bought Lumi, I had bought a BEW
However, I found out later that his eyes can change from blue, to grey, to brown while he’s eating so about 5 minutes?
I’m thinking he had hazel eyes but is this normal? I’ve never seen a rabbit with eyes like his before.

 

[Hermelin]

It’s the light that makes the eyes seem to change color. One of my bunnies have one eye half blue and brown but sometimes it look like his eye it’s completely black. Because of the brown being so dark.