Deep River vs Grey Blue
Where Deep River belongs to Benjamin Moore's range, Grey Blue is a RAL Classic color. Hue-wise, Deep River belongs to the grey family and Grey Blue to the blue-grey family. They have nearly identical light reflectance values (8 vs 7), so they'll read as similarly Dark in most lighting conditions. The ΔE 8.9 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Deep River vs Grey Blue in Real Spaces
1 real room side by side. Deep River 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.
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.
Color Details
Deep River vs Grey Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Deep River 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 Deep River comparisons
See how Deep River stacks up against other well-photographed colors across different brands and tones.
