Carbon is an element that can be black.
Carbon exists in several allotropic forms, and some of these forms appear black. A notable example is graphite, a common allotrope of carbon used in pencils. Amorphous carbon, such as soot and charcoal, also appears black. The black color arises from the way these forms of carbon absorb light.
While other elements might form black compounds or have black-colored allotropes under specific conditions (for example, certain oxides of transition metals), carbon is the most common element directly recognized for its black elemental forms. The reference provided also directly lists carbon as black.
