Platinum grey vs Steel blue
Platinum grey and Steel blue come from the same RAL Classic collection. Platinum grey reads as grey, while Steel blue reads as blue — two distinct hue families, not close cousins. The 26-point LRV gap — 32 for Platinum grey vs 5 for Steel blue — means Platinum grey will open up a space more effectively. A ΔE of 46.6 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Platinum grey vs Steel blue in Real Spaces
3 real rooms side by side. Seeing Platinum grey and Steel blue in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
House
A full exterior is the most demanding test for a paint color — scale and outdoor light both amplify differences that seem small on a swatch. Platinum grey returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Front Door
On a front door, the color is both the first and last thing you see — a context where even a modest tonal difference reads clearly. Platinum grey reflects noticeably more light off the walls, making the space read more open than Steel blue.
Kitchen Cabinets
Cabinet color is always seen in context — against countertops, backsplash, and hardware — which amplifies undertone differences that might disappear on a plain wall. Platinum grey returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Platinum grey vs Steel blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Platinum grey on one side and Steel blue 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 Platinum grey comparisons
See how Platinum grey stacks up against other well-photographed colors across different brands and tones.
