Cement grey vs Colonial Yellow
Cement grey (RAL Classic) and Colonial Yellow (Sherwin-Williams) come from different manufacturers. Cement grey reads as grey, while Colonial Yellow reads as beige-yellow — two distinct hue families, not close cousins. The 35-point LRV gap — 60 for Colonial Yellow vs 24 for Cement grey — means Colonial Yellow will open up a space more effectively. A ΔE of 41.6 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 4 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Cement grey vs Colonial Yellow in Real Spaces
4 real rooms side by side. Seeing Cement grey and Colonial Yellow 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. Colonial Yellow reflects noticeably more light off the walls, making the space read more open than Cement grey.
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. Colonial Yellow 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. Colonial Yellow reflects noticeably more light off the walls, making the space read more open than Cement grey.
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. Colonial Yellow 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 Colonial Yellow Simulated Comparison
5 simulated room previews — drag the slider on each to see Cement grey on one side and Colonial Yellow 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.
