Submarine Gray vs Iron grey
Submarine Gray (Behr) and Iron grey (RAL Classic) come from different manufacturers. These are both blue-greys, so the question isn't which hue to choose — it's where within blue-grey to land. The 3-point LRV gap — 12 for Iron grey vs 9 for Submarine Gray — means Iron grey will open up a space more effectively. A ΔE of 1.8 puts them in subtle territory — distinguishable in direct comparison, less so from across a room. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Submarine Gray vs Iron grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Submarine Gray on one side and Iron 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 Submarine Gray comparisons
See how Submarine Gray stacks up against other well-photographed colors across different brands and tones.








































