Clam Shell vs Olive grey
Where Clam Shell belongs to PPG's range, Olive grey is a RAL Classic color. These are both greige-greys, so the question isn't which hue to choose — it's where within greige-grey to land. Olive grey (LRV 22) reflects noticeably more light than Clam Shell (LRV 18), a difference of 4 points that becomes especially apparent in rooms with limited natural light. The ΔE 3.8 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Clam Shell vs Olive grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Clam Shell on one side and Olive 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 Clam Shell comparisons
See how Clam Shell stacks up against other well-photographed colors across different brands and tones.
