Green Marble vs Quartz grey
Green Marble (Jotun) and Quartz grey (RAL Classic) come from different manufacturers. Green Marble reads as green-grey, while Quartz grey reads as grey — two distinct hue families, not close cousins. The 3-point LRV gap — 17 for Quartz grey vs 13 for Green Marble — means Quartz grey will open up a space more effectively. A ΔE of 1.8 puts them in subtle territory — distinguishable in direct comparison, less so from across a room. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Green Marble vs Quartz grey in Real Spaces
2 real rooms side by side. Green Marble and Quartz grey 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.
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. Quartz grey has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
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. Quartz grey has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Color Details
Green Marble vs Quartz grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Green Marble on one side and Quartz 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 Green Marble comparisons
See how Green Marble stacks up against other well-photographed colors across different brands and tones.











































