What chicken breed lays the darkest eggs?

While other breeds, like the Araucana and the Easter Egger, can lay blue or green eggs, the Ameraucana is known for laying a deep, rich, almost black egg. These eggs are often described as "chocolate brown" or "dark brown" due to their deep pigmentation.

It's important to note that egg color is a dominant trait, so even if you have a purebred Ameraucana, you might get some eggs that are lighter than others. However, their eggs are generally the darkest you'll find compared to other breeds.