RAL 150-M vs Keystone Gray
Where RAL 150-M belongs to RAL Effect's range, Keystone Gray is a Sherwin-Williams color. Hue-wise, RAL 150-M belongs to the beige-greige family and Keystone Gray to the greige-grey family. RAL 150-M (LRV 33) reflects noticeably more light than Keystone Gray (LRV 29), a difference of 4 points that becomes especially apparent in rooms with limited natural light. The ΔE 4.2 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
RAL 150-M vs Keystone Gray in Real Spaces
1 real room side by side. RAL 150-M and Keystone Gray 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.
Bathroom
Bathrooms are one of the few spaces where you're genuinely enclosed by the paint color, which makes the choice between these two more consequential. RAL 150-M reads slightly lighter here — a subtle but real difference in how open the space feels.
Color Details
RAL 150-M vs Keystone Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 150-M on one side and Keystone Gray 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 RAL 150-M comparisons
See how RAL 150-M stacks up against other well-photographed colors across different brands and tones.
