Neptune Seas vs Black grey
Neptune Seas is a Dulux color while Black grey comes from RAL Classic. Both sit in the blue-grey family, which is useful context if you're narrowing within a single hue direction. At LRV 19 vs 6, Neptune Seas will read as the brighter of the two — a 13-point gap that matters most in north-facing or low-light rooms. At ΔE 28.7, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Neptune Seas vs Black grey in Real Spaces
1 real room side by side. Seeing Neptune Seas and Black grey in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Living Room
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. Neptune Seas returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Neptune Seas vs Black grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Neptune Seas on one side and Black grey on the other.
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.
More Neptune Seas comparisons
See how Neptune Seas stacks up against other well-photographed colors across different brands and tones.
