Niagara Blues 1 vs Cement grey
Where Niagara Blues 1 belongs to Dulux's range, Cement grey is a RAL Classic color. Niagara Blues 1 reads as blue, while Cement grey reads as grey — two distinct hue families, not close cousins. Cement grey (LRV 24) reflects noticeably more light than Niagara Blues 1 (LRV 15), a difference of 9 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 24.6, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Niagara Blues 1 vs Cement grey in Real Spaces
2 real rooms side by side. Seeing Niagara Blues 1 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
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The LRV gap is large enough that Cement grey will make the room feel meaningfully brighter than Niagara Blues 1 would.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Cement grey reflects noticeably more light off the walls, making the space read more open than Niagara Blues 1.
Color Details
Niagara Blues 1 vs Cement grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Niagara Blues 1 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 Niagara Blues 1 comparisons
See how Niagara Blues 1 stacks up against other well-photographed colors across different brands and tones.












































