Hopper Head vs Grey Blue
Hopper Head (Farrow & Ball) and Grey Blue (RAL Classic) come from different manufacturers. Hue-wise, Hopper Head belongs to the grey family and Grey Blue to the blue-grey family. Their light reflectance values are nearly the same — 9 vs 7 — so neither will read significantly brighter or darker than the other. ΔE 6.1 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Hopper Head vs Grey Blue in Real Spaces
2 real rooms side by side. Hopper Head and Grey Blue 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.
Bedroom
Bedrooms are typically lit with warmer, lower light than the rest of the house — a condition that flatters warm tones and deepens cool ones. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.
Kitchen Cabinets
Cabinet color is always seen in context — against countertops, backsplash, and hardware — which amplifies undertone differences that might disappear on a plain wall. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.
Color Details
Hopper Head vs Grey Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Hopper Head on one side and Grey Blue 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 Hopper Head comparisons
See how Hopper Head stacks up against other well-photographed colors across different brands and tones.











































