Coastal Grey vs RAL 180-1
Where Coastal Grey belongs to Dulux's range, RAL 180-1 is a RAL Effect color. Coastal Grey reads as blue-grey, while RAL 180-1 reads as blue — two distinct hue families, not close cousins. Coastal Grey (LRV 56) reflects noticeably more light than RAL 180-1 (LRV 49), a difference of 7 points that becomes especially apparent in rooms with limited natural light. The ΔE 4.7 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Coastal Grey vs RAL 180-1 in Real Spaces
3 real rooms side by side. Coastal Grey and RAL 180-1 are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Living Room
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The brightness difference is modest but present — Coastal Grey gives the walls a little more lift.
Bathroom
Bathrooms are one of the few spaces where you're genuinely enclosed by the paint color, which makes the choice between these two more consequential. Coastal Grey reads slightly lighter here — a subtle but real difference in how open the space feels.
House
Seen across an entire facade, subtle tonal differences become pronounced. What reads as nearly the same on a chip often reads as clearly different at scale. Coastal Grey reads slightly lighter here — a subtle but real difference in how open the space feels.
Color Details
Coastal Grey vs RAL 180-1 Simulated Comparison
5 simulated room previews — drag the slider on each to see Coastal Grey on one side and RAL 180-1 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 Coastal Grey comparisons
See how Coastal Grey stacks up against other well-photographed colors across different brands and tones.
