Boreal vs Castor Grey
Boreal (Behr) and Castor Grey (Cloverdale Paint) come from different manufacturers. These are both green-greys, so the question isn't which hue to choose — it's where within green-grey to land. Their light reflectance values are nearly the same — 19 vs 19 — so neither will read significantly brighter or darker than the other. ΔE 3.8 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Boreal vs Castor Grey in Real Spaces
1 real room side by side. Boreal and Castor 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.
Dining Room
Dining rooms often rely on warm incandescent or candlelight, which flatters warm undertones and mutes cool ones. Side by side like this, the difference is easy to read — which is exactly why seeing them in a real space is more useful than comparing chips.
Color Details
Boreal vs Castor Grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Boreal on one side and Castor 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 Boreal comparisons
See how Boreal stacks up against other well-photographed colors across different brands and tones.
