Iron grey vs Still Water
Iron grey is a RAL Classic color while Still Water comes from Sherwin-Williams. Both sit in the blue-grey family, which is useful context if you're narrowing within a single hue direction. With LRVs of 12 and 10, they'll behave almost identically in terms of how much light they reflect back into a room. At ΔE 4.9, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Iron grey vs Still Water in Real Spaces
2 real rooms side by side. Iron grey and Still Water 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.
House
At full exterior scale, the difference between these two colors becomes much easier to judge than from a small chip. Side by side like this, the difference is easy to read — which is exactly why seeing them in a real space is more useful than comparing chips.
Front Door
Front doors are seen in isolation against the rest of the facade, which makes them a high-stakes surface where even subtle differences matter. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.
Color Details
Iron grey vs Still Water Simulated Comparison
5 simulated room previews — drag the slider on each to see Iron grey on one side and Still Water 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 Iron grey comparisons
See how Iron grey stacks up against other well-photographed colors across different brands and tones.
