Cement grey vs Library Pewter
Where Cement grey belongs to RAL Classic's range, Library Pewter is a Sherwin-Williams color. Cement grey reads as grey, while Library Pewter reads as greige-grey — two distinct hue families, not close cousins. Cement grey (LRV 24) reflects noticeably more light than Library Pewter (LRV 17), a difference of 7 points that becomes especially apparent in rooms with limited natural light. The ΔE 8.5 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Cement grey vs Library Pewter in Real Spaces
3 real rooms side by side. Cement grey and Library Pewter 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
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The brightness difference is modest but present — Cement grey gives the walls a little more lift.
House
Seen across an entire facade, subtle tonal differences become pronounced. What reads as nearly the same on a chip often reads as clearly different at scale. Cement grey reads slightly lighter here — a subtle but real difference in how open the space feels.
Front Door
A front door is a focal point — small color differences read clearly at this concentrated scale. The brightness difference is modest but present — Cement grey gives the walls a little more lift.
Color Details
Cement grey vs Library Pewter Simulated Comparison
5 simulated room previews — drag the slider on each to see Cement grey on one side and Library Pewter 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 Cement grey comparisons
See how Cement grey stacks up against other well-photographed colors across different brands and tones.
