Blue By You vs Cement grey
Blue By You (PPG) and Cement grey (RAL Classic) come from different manufacturers. Hue-wise, Blue By You belongs to the blue family and Cement grey to the grey family. The 22-point LRV gap — 46 for Blue By You vs 24 for Cement grey — means Blue By You will open up a space more effectively. A ΔE of 22.5 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 5 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Blue By You vs Cement grey in Real Spaces
5 real rooms side by side. Seeing Blue By You and Cement grey in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Living Room
A living room wall sees more varied light than almost any other surface in the house, which makes the choice between these two more nuanced than a chip suggests. Blue By You reflects noticeably more light off the walls, making the space read more open than Cement grey.
Bedroom
Bedrooms are typically lit with warmer, lower light than the rest of the house — a condition that flatters warm tones and deepens cool ones. Blue By You returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Bathroom
Small bathrooms intensify color. A shade that seems quiet in a larger room can feel immersive when you're surrounded by it on four walls. Blue By You returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
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. Blue By You 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. Blue By You reflects noticeably more light off the walls, making the space read more open than Cement grey.
Color Details
Blue By You vs Cement grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Blue By You on one side and Cement 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 Blue By You comparisons
See how Blue By You stacks up against other well-photographed colors across different brands and tones.
At LRV 69 vs 46, Ammonite is decisively the brighter choice.
White Dove reflects far more light (LRV 83 vs 46), opening up a space where Blue By You encloses it.
Blue By You reflects far more light (LRV 46 vs 6), opening up a space where Iron Ore encloses it.
A 6-point LRV gap (52 vs 46) makes Purbeck Stone the marginally brighter of the two.
At LRV 46 vs 30, Blue By You is decisively the brighter choice.
Mizzle reads slightly lighter (LRV 52 vs 46), a gap that shows most in low-lit rooms.
At LRV 60 vs 46, Agreeable Gray is decisively the brighter choice.
Accessible Beige reads slightly lighter (LRV 58 vs 46), a gap that shows most in low-lit rooms.
Blue By You reflects far more light (LRV 46 vs 27), opening up a space where Denim Drift encloses it.
Their light reflectance is nearly identical (LRV 46 vs 43), so neither reads brighter in a room.
At LRV 46 vs 4, Blue By You is decisively the brighter choice.
Tranquil Dawn reads slightly lighter (LRV 55 vs 46), a gap that shows most in low-lit rooms.
Blue By You reflects far more light (LRV 46 vs 13), opening up a space where Bancha encloses it.
With LRVs of 46 and 44, the two reflect almost the same amount of light.
At LRV 84 vs 46, Pure White is decisively the brighter choice.
At LRV 46 vs 21, Blue By You is decisively the brighter choice.
Balboa Mist reflects far more light (LRV 66 vs 46), opening up a space where Blue By You encloses it.
Shoji White reflects far more light (LRV 74 vs 46), opening up a space where Blue By You encloses it.
Snowbound reflects far more light (LRV 83 vs 46), opening up a space where Blue By You encloses it.
A 5-point LRV gap (51 vs 46) makes Pigeon the marginally brighter of the two.
Blue By You reflects far more light (LRV 46 vs 12), opening up a space where Pewter Green encloses it.
Blue By You reflects far more light (LRV 46 vs 8), opening up a space where Duck Green encloses it.
Skimming Stone reflects far more light (LRV 68 vs 46), opening up a space where Blue By You encloses it.
A 5-point LRV gap (46 vs 41) makes Blue By You the marginally brighter of the two.
Blue By You reflects far more light (LRV 46 vs 12), opening up a space where Vintage Vogue encloses it.
With LRVs of 46 and 45, the two reflect almost the same amount of light.
At LRV 46 vs 31, Blue By You is decisively the brighter choice.