Deepslate is a dark gray stone that adds weight to foundations, lower walls, and trim. Pair it with lighter stone, tuff, or calcite so it reads as a darker base.
Blocks to try around it, picked by color and surface detail. These are suggestions, not rules.
Deepslate is dark enough to frame a lighter wall from above and below. Use it for the bottom rows, repeat it in the roof, and keep the wall between them a lighter stone.
Ranked by the average color of each block's texture. A close color is a starting point for a palette, not a rule.