Black grey vs Loch Blue
Where Black grey belongs to RAL Classic's range, Loch Blue is a Sherwin-Williams color. Black grey reads as blue-grey, while Loch Blue reads as blue — two distinct hue families, not close cousins. Loch Blue (LRV 16) reflects noticeably more light than Black grey (LRV 6), a difference of 9 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 33.9, 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 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Black grey vs Loch Blue in Real Spaces
2 real rooms side by side. Seeing Black grey and Loch Blue in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
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. Loch Blue reflects noticeably more light off the walls, making the space read more open than Black grey.
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 Loch Blue will make the room feel meaningfully brighter than Black grey would.
Color Details
Black grey vs Loch Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Black grey on one side and Loch 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 Black grey comparisons
See how Black grey stacks up against other well-photographed colors across different brands and tones.
