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.
At LRV 69 vs 32, Ammonite is decisively the brighter choice.
White Dove reflects far more light (LRV 83 vs 32), opening up a space where Platinum grey encloses it.
Platinum grey reflects far more light (LRV 32 vs 6), opening up a space where Iron Ore encloses it.
At LRV 52 vs 32, Purbeck Stone is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 32 vs 30), so neither reads brighter in a room.
Mizzle reflects far more light (LRV 52 vs 32), opening up a space where Platinum grey encloses it.
At LRV 60 vs 32, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 32), opening up a space where Platinum grey encloses it.
Platinum grey reads slightly lighter (LRV 32 vs 27), a gap that shows most in low-lit rooms.
A 12-point LRV gap (43 vs 32) makes French Gray the marginally brighter of the two.
At LRV 32 vs 4, Platinum grey is decisively the brighter choice.
Tranquil Dawn reflects far more light (LRV 55 vs 32), opening up a space where Platinum grey encloses it.
Platinum grey reflects far more light (LRV 32 vs 13), opening up a space where Bancha encloses it.
Hardwick White reads slightly lighter (LRV 44 vs 32), a gap that shows most in low-lit rooms.
At LRV 84 vs 32, Pure White is decisively the brighter choice.
A 10-point LRV gap (32 vs 21) makes Platinum grey the marginally brighter of the two.
Balboa Mist reflects far more light (LRV 66 vs 32), opening up a space where Platinum grey encloses it.
Shoji White reflects far more light (LRV 74 vs 32), opening up a space where Platinum grey encloses it.
Snowbound reflects far more light (LRV 83 vs 32), opening up a space where Platinum grey encloses it.
At LRV 51 vs 32, Pigeon is decisively the brighter choice.
Platinum grey reflects far more light (LRV 32 vs 12), opening up a space where Pewter Green encloses it.
Platinum grey reflects far more light (LRV 32 vs 8), opening up a space where Duck Green encloses it.
Skimming Stone reflects far more light (LRV 68 vs 32), opening up a space where Platinum grey encloses it.
A 9-point LRV gap (41 vs 32) makes Dix Blue the marginally brighter of the two.
Platinum grey reflects far more light (LRV 32 vs 12), opening up a space where Vintage Vogue encloses it.
Saybrook Sage reflects far more light (LRV 45 vs 32), opening up a space where Platinum grey encloses it.
Their light reflectance is nearly identical (LRV 32 vs 31), so neither reads brighter in a room.