Grey Blue vs Quixotic Plum
Grey Blue (RAL Classic) and Quixotic Plum (Sherwin-Williams) come from different manufacturers. These are both blue-greys, so the question isn't which hue to choose — it's where within blue-grey to land. Their light reflectance values are nearly the same — 7 vs 6 — so neither will read significantly brighter or darker than the other. ΔE 4.9 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Grey Blue vs Quixotic Plum in Real Spaces
1 real room side by side. Grey Blue and Quixotic Plum 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. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.
Color Details
Grey Blue vs Quixotic Plum Simulated Comparison
5 simulated room previews — drag the slider on each to see Grey Blue on one side and Quixotic Plum 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 Grey Blue comparisons
See how Grey Blue stacks up against other well-photographed colors across different brands and tones.
