Cloudy Slate vs Waterloo
Cloudy Slate (PPG) and Waterloo (Sherwin-Williams) come from different manufacturers. Cloudy Slate reads as grey, while Waterloo reads as blue — two distinct hue families, not close cousins. The 16-point LRV gap — 29 for Cloudy Slate vs 13 for Waterloo — means Cloudy Slate will open up a space more effectively. A ΔE of 20.7 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 6 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Cloudy Slate vs Waterloo in Real Spaces
6 real rooms side by side. Seeing Cloudy Slate and Waterloo 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. Cloudy Slate reflects noticeably more light off the walls, making the space read more open than Waterloo.
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. Cloudy Slate 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. Cloudy Slate returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Home Office
Home office walls matter more than most — you're looking at them all day, and a color that reads fine at first can become tiring over time. Cloudy Slate 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. Cloudy Slate 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. Cloudy Slate reflects noticeably more light off the walls, making the space read more open than Waterloo.
Color Details
Cloudy Slate vs Waterloo Simulated Comparison
5 simulated room previews — drag the slider on each to see Cloudy Slate on one side and Waterloo 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 Cloudy Slate comparisons
See how Cloudy Slate stacks up against other well-photographed colors across different brands and tones.
