Cannon Ball vs Slate grey
Where Cannon Ball belongs to Dulux's range, Slate grey is a RAL Classic color. Hue-wise, Cannon Ball belongs to the grey family and Slate grey to the blue-grey family. They have nearly identical light reflectance values (11 vs 12), so they'll read as similarly Dark in most lighting conditions. At ΔE 2.5, these are close — the kind of difference that matters when choosing between them, but doesn't read strongly in a finished room. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Cannon Ball vs Slate grey in Real Spaces
2 real rooms side by side. Cannon Ball and Slate grey 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
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. At this scale the difference is subtle — you'd need them side by side, as shown here, to reliably tell them apart.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. At this scale the difference is subtle — you'd need them side by side, as shown here, to reliably tell them apart.
Color Details
Cannon Ball vs Slate grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Cannon Ball on one side and Slate 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 Cannon Ball comparisons
See how Cannon Ball stacks up against other well-photographed colors across different brands and tones.
