Cement grey vs Honest Blue
Cement grey (RAL Classic) and Honest Blue (Sherwin-Williams) come from different manufacturers. Cement grey reads as grey, while Honest Blue reads as blue — two distinct hue families, not close cousins. The 31-point LRV gap — 55 for Honest Blue vs 24 for Cement grey — means Honest Blue will open up a space more effectively. A ΔE of 29.7 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.
Cement grey vs Honest Blue in Real Spaces
3 real rooms side by side. Seeing Cement grey and Honest Blue 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. Honest Blue 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. Honest Blue 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. Honest Blue returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Cement grey vs Honest Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Cement grey on one side and Honest 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 Cement grey comparisons
See how Cement grey stacks up against other well-photographed colors across different brands and tones.
