Dark counters in tones such as black or charcoal can appear very gothic in some situations and perfectly harmonious in others. If you have dark cabinetry dark floors or other rich and weighty finishes a dark countertop will fit right in. In this example you can see that the white counter is the one that pops compared with the island counter which almost blends into the deep wood drawer fronts. If you’re going for a dark‐on‐dark palette it helps to have lots of light sources natural or added (or both). This will keep the space feeling cozy and sophisticated instead of just cave‐like.
Wood counters naturally also work well in spaces that already feature wood cabinets – that is if you’re a true wood lover and don’t mind it dominating the palette. Notice in several of these examples how wood only dresses the island counters. Wood in general is an excellent material to use for an accent counter (often on an island or a small "chopping zone" in butcher block) contrasting with nearby stone or solid‐surface counters in a pleasing way.
This could either be seen as a broken U or an L‐shaped kitchen with an island. Technically I'd say it leans towards the latter but if you imagine that door on the left being cabinetry you can use this layout for inspiration for your own U‐shaped kitchen.