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.
At LRV 83 vs 12, White Dove is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 12), opening up a space where Iron grey encloses it.
Evergreen Fog reflects far more light (LRV 30 vs 12), opening up a space where Iron grey encloses it.
Agreeable Gray reflects far more light (LRV 60 vs 12), opening up a space where Iron grey encloses it.
At LRV 58 vs 12, Accessible Beige is decisively the brighter choice.
At LRV 27 vs 12, Denim Drift is decisively the brighter choice.
French Gray reflects far more light (LRV 43 vs 12), opening up a space where Iron grey encloses it.
At LRV 55 vs 12, Tranquil Dawn is decisively the brighter choice.
At LRV 44 vs 12, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 12), opening up a space where Iron grey encloses it.
At LRV 66 vs 12, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 12, Shoji White is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 12 vs 12), so neither reads brighter in a room.
A 4-point LRV gap (12 vs 8) makes Iron grey the marginally brighter of the two.
At LRV 68 vs 12, Skimming Stone is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 12 vs 12), so neither reads brighter in a room.
At LRV 45 vs 12, Saybrook Sage is decisively the brighter choice.
Pale Green reflects far more light (LRV 31 vs 12), opening up a space where Iron grey encloses it.