Calluna vs S 1005-R50B
Calluna is a Farrow & Ball color while S 1005-R50B comes from NCS. These are both greys, so the question isn't which hue to choose — it's where within grey to land. At LRV 70 vs 57, S 1005-R50B will read as the brighter of the two — a 13-point gap that matters most in north-facing or low-light rooms. They share a neutral quality — useful to know if you're layering them in the same space. At ΔE 6.0, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Calluna vs S 1005-R50B in Real Spaces
1 real room side by side. Calluna and S 1005-R50B 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
Bedroom walls are often seen under warm artificial light, a context that shifts both colors from how they look on a chip. The LRV gap is large enough that S 1005-R50B will make the room feel meaningfully brighter than Calluna would.
Color Details
Calluna vs S 1005-R50B Simulated Comparison
5 simulated room previews — drag the slider on each to see Calluna on one side and S 1005-R50B 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 Calluna comparisons
See how Calluna stacks up against other well-photographed colors across different brands and tones.
