Greenhow Blue vs Black grey
Where Greenhow Blue belongs to Benjamin Moore's range, Black grey is a RAL Classic color. Greenhow Blue reads as blue-green, while Black grey reads as blue-grey — two distinct hue families, not close cousins. Greenhow Blue (LRV 55) reflects noticeably more light than Black grey (LRV 6), a difference of 49 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 58.9, 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 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Greenhow Blue vs Black grey in Real Spaces
1 real room side by side. Seeing Greenhow Blue and Black grey in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Front Door
A front door is a focal point — small color differences read clearly at this concentrated scale. The LRV gap is large enough that Greenhow Blue will make the room feel meaningfully brighter than Black grey would.
Color Details
Greenhow Blue vs Black grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Greenhow Blue on one side and Black 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 Greenhow Blue comparisons
See how Greenhow Blue stacks up against other well-photographed colors across different brands and tones.










































