Cool Slate vs RAL 110-3
Cool Slate (PPG) and RAL 110-3 (RAL Effect) come from different manufacturers. Both sit in the greige-grey family, which is useful context if you're narrowing within a single hue direction. The 6-point LRV gap — 62 for Cool Slate vs 56 for RAL 110-3 — means Cool Slate will open up a space more effectively. A ΔE of 2.5 puts them in subtle territory — distinguishable in direct comparison, less so from across a room. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Cool Slate vs RAL 110-3 in Real Spaces
3 real rooms side by side. Cool Slate and RAL 110-3 are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
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. Cool Slate reads slightly lighter here — a subtle but real difference in how open the space feels.
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. Cool Slate has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
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. Cool Slate has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Color Details
Cool Slate vs RAL 110-3 Simulated Comparison
5 simulated room previews — drag the slider on each to see Cool Slate on one side and RAL 110-3 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 Cool Slate comparisons
See how Cool Slate stacks up against other well-photographed colors across different brands and tones.
Ammonite reads slightly lighter (LRV 69 vs 62), a gap that shows most in low-lit rooms.
At LRV 83 vs 62, White Dove is decisively the brighter choice.
At LRV 62 vs 6, Cool Slate is decisively the brighter choice.
Cool Slate reads slightly lighter (LRV 62 vs 52), a gap that shows most in low-lit rooms.
Cool Slate reflects far more light (LRV 62 vs 30), opening up a space where Evergreen Fog encloses it.
A 10-point LRV gap (62 vs 52) makes Cool Slate the marginally brighter of the two.
With LRVs of 62 and 60, the two reflect almost the same amount of light.
A 4-point LRV gap (62 vs 58) makes Cool Slate the marginally brighter of the two.
At LRV 62 vs 27, Cool Slate is decisively the brighter choice.
Cool Slate reflects far more light (LRV 62 vs 43), opening up a space where French Gray encloses it.
Cool Slate reflects far more light (LRV 62 vs 4), opening up a space where Naval encloses it.
A 7-point LRV gap (62 vs 55) makes Cool Slate the marginally brighter of the two.
At LRV 62 vs 13, Cool Slate is decisively the brighter choice.
At LRV 62 vs 44, Cool Slate is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 62), opening up a space where Cool Slate encloses it.
Cool Slate reflects far more light (LRV 62 vs 21), opening up a space where Artichoke encloses it.
A 4-point LRV gap (66 vs 62) makes Balboa Mist the marginally brighter of the two.
At LRV 74 vs 62, Shoji White is decisively the brighter choice.
At LRV 83 vs 62, Snowbound is decisively the brighter choice.
Cool Slate reads slightly lighter (LRV 62 vs 51), a gap that shows most in low-lit rooms.
At LRV 62 vs 12, Cool Slate is decisively the brighter choice.
At LRV 62 vs 8, Cool Slate is decisively the brighter choice.
A 6-point LRV gap (68 vs 62) makes Skimming Stone the marginally brighter of the two.
Cool Slate reflects far more light (LRV 62 vs 41), opening up a space where Dix Blue encloses it.
At LRV 62 vs 12, Cool Slate is decisively the brighter choice.
At LRV 62 vs 45, Cool Slate is decisively the brighter choice.
Cool Slate reflects far more light (LRV 62 vs 31), opening up a space where Pale Green encloses it.