Old Silk vs Quartz grey
Where Old Silk belongs to PPG's range, Quartz grey is a RAL Classic color. Old Silk reads as blue-grey, while Quartz grey reads as grey — two distinct hue families, not close cousins. They have nearly identical light reflectance values (17 vs 17), so they'll read as similarly Dark in most lighting conditions. With a ΔE of 11.0, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Old Silk vs Quartz grey in Real Spaces
3 real rooms side by side. Seeing Old Silk and Quartz grey in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Kitchen
In a kitchen, colors are seen under bright task lighting that amplifies undertones — what reads neutral elsewhere can show its hand here. The distinction reads clearly at room scale, making the choice between them concrete.
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. The distinction reads clearly at room scale, making the choice between them concrete.
Front Door
A front door is a focal point — small color differences read clearly at this concentrated scale. Side by side like this, the difference is easy to read — which is exactly why seeing them in a real space is more useful than comparing chips.
Color Details
Old Silk vs Quartz grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Old Silk 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 Old Silk comparisons
See how Old Silk stacks up against other well-photographed colors across different brands and tones.
