Onyx N20
Reads as black from a distance and shows its true colour up close. Onyx N20 is the deepest seamless black we apply — a microcement shade with an evenly balanced undertone and clear true black undertones. We see Onyx N20 specified most often for single feature walls behind joinery and wet-rooms and walk-in showers. Works as a backdrop to brass, gilt frames and warm-toned timber. The lineage is haute minimal, but the way it sits on a wall is unmistakably current.
Best used in feature wall, wet room
The deepest seamless black we apply reads its best where the light is soft and consistent. Below are the rooms we've installed this shade in most often.
- fireplace walls and bed-headboard recesses
- tanked shower areas
- showroom walls and product backdrops
Shades that sit beside Onyx N20
Picked by family, warmth and tonal proximity within the same range.
How Onyx N20 is applied
Onyx N20 uses the standard Microcement build. The technical specification is the same across colour — only the pigment changes.
Questions clients ask about this shade
Won't Onyx N20 make the room feel smaller?+
Deep shades like Onyx N20 actually blur a room's edges, making walls feel further away rather than closer. The trick is to wrap the colour onto skirting and trim so there are no high-contrast lines to remind the eye where the room ends.
Is Onyx N20 suitable for a shower or wet-room?+
Onyx N20 can be specified for wet-rooms with our standard microcement wet-zone build: primer, two base coats with reinforcing mesh, two finishing coats, then a tanking membrane and two coats of polyurethane sealer. The colour itself doesn't change suitability — finish and sealer do.
What does Onyx N20 pair with from your range?+
We most often pair Onyx N20 with the three closest shades in its family — see the pairings panel below. Beyond that, pairs with marble, antique brass and richly grained timbers.
Hand-poured A5 sample posted to you within 5 working days.