Nether brick slab

Since 1.13 or earlier

Lower half

Colour

Value: Very dark (L* 11)
Hue: 10°, chroma 13
Texture: Smooth

Shapes of this material

Block Stairs Slab Wall Fence Chiseled Cracked

Goes well with

One step lighter

The next band up in a gradient: same hue, no hard line.

Polished blackstone11 lighter Cracked deepslate tiles12 lighter

Frame

A log or polished stone that contrasts in value, one block in front of the fill.

Polished cinnabar28 lighter Stripped crimson hyphae25 lighter Acacia log31 lighter

Accent

A colour for about a tenth of the build, at the focal point.

Jungle log19 lighter Spruce planks28 lighter Oak log28 lighter

Closest colours

Blackstone slabΔE 11.7 Polished blackstone brick slabΔE 14.0 Polished blackstone slabΔE 15.8 Deepslate tile slabΔE 18.2 Dark oak slabΔE 20.2 Red nether brick slabΔE 22.6 Crimson slabΔE 23.4 Deepslate brick slabΔE 24.4

States

6 combinations

type top, bottom, double: Which half the slab occupies.
waterlogged true, false: true puts a water source inside the block (water renders around it). Always false for dry builds.