Black grey vs Wondrous Blue
Black grey (RAL Classic) and Wondrous Blue (Sherwin-Williams) come from different manufacturers. Black grey reads as blue-grey, while Wondrous Blue reads as blue — two distinct hue families, not close cousins. The 53-point LRV gap — 59 for Wondrous Blue vs 6 for Black grey — means Wondrous Blue will open up a space more effectively. A ΔE of 61.4 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Black grey vs Wondrous Blue in Real Spaces
1 real room side by side. Seeing Black grey and Wondrous 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
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. Wondrous Blue returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Black grey vs Wondrous Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Black grey on one side and Wondrous 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.
