Black blue vs Purbeck Stone

RAL Classic
·
Farrow & Ball

Black blue is a RAL Classic color while Purbeck Stone comes from Farrow & Ball. At LRV 52 vs 5, Purbeck Stone will read as the brighter of the two — a 47-point gap that matters most in north-facing or low-light rooms. At ΔE 67.3, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions.

Black blue vs Purbeck Stone Color Comparison

Bathroom
Bedroom
House
Kitchen Cabinets
Living Room

Digital color is approximate. These simulations are generated from the manufacturer's hex values and overlaid on grayscale room photos — your screen's calibration, brightness, and viewing angle all affect how they render. Before committing to either color, test physical samples in your own space under the light you actually live with.

ΔE 67.3Very different colors

Color Details

Black blue
RAL Classic · RAL 5004
Hex#191E28
LRV4.6
BrandRAL Classic
NumberRAL 5004
Undertone
Temperature
Brightnessdark
View Black blue
Purbeck Stone
Farrow & Ball · 275
Hex#c4beb4
LRV51.9
BrandFarrow & Ball
Number275
Undertone
Temperaturewarm
Brightnessmedium
View Purbeck Stone

Black blue vs Purbeck Stone in Real Spaces

Seeing Black blue and Purbeck Stone in actual rooms makes the difference concrete. Browse the spaces below to get a feel for how each color lives on a wall. Showing 1 room type where both colors have photos.

Kitchen Cabinets

On cabinetry, undertone and temperature become more pronounced against countertops and hardware. The LRV gap is large enough that Purbeck Stone will make the room feel meaningfully brighter than Black blue would.

Black blue
RAL Classic  Black blue kitchen cabinets color

@lma.paris

Purbeck Stone
Farrow and Ball 275 kitchen cabinets picture

@hannahdoraninteriors

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