Steel Curtain vs White aluminium
Steel Curtain is a PPG color while White aluminium comes from RAL Classic. Steel Curtain reads as grey, while White aluminium reads as grey-white — two distinct hue families, not close cousins. At LRV 46 vs 34, White aluminium will read as the brighter of the two — a 12-point gap that matters most in north-facing or low-light rooms. With a ΔE of 3.0, the difference is subtle — you'd need them side by side to reliably tell them apart. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Steel Curtain vs White aluminium in Real Spaces
3 real rooms side by side. Steel Curtain and White aluminium 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
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. White aluminium returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Kitchen
Kitchen lighting tends to be bright and directional, which sharpens contrast and makes undertone differences more apparent. The LRV gap is large enough that White aluminium will make the room feel meaningfully brighter than Steel Curtain would.
House
At full exterior scale, the difference between these two colors becomes much easier to judge than from a small chip. The LRV gap is large enough that White aluminium will make the room feel meaningfully brighter than Steel Curtain would.
Color Details
Steel Curtain vs White aluminium Simulated Comparison
5 simulated room previews — drag the slider on each to see Steel Curtain on one side and White aluminium 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 Steel Curtain comparisons
See how Steel Curtain stacks up against other well-photographed colors across different brands and tones.
