Jamestown Blue vs S 4010-B70G
Jamestown Blue (Benjamin Moore) and S 4010-B70G (NCS) come from different manufacturers. Hue-wise, Jamestown Blue belongs to the blue family and S 4010-B70G to the blue-grey family. The 6-point LRV gap — 34 for Jamestown Blue vs 28 for S 4010-B70G — means Jamestown Blue will open up a space more effectively. Where Jamestown Blue leans blue, S 4010-B70G reads cool — a distinction that shifts noticeably depending on the light source and surrounding finishes. ΔE 6.8 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.
Jamestown Blue vs S 4010-B70G in Real Spaces
1 real room side by side. Jamestown Blue and S 4010-B70G 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.
Living Room
A living room wall sees more varied light than almost any other surface in the house, which makes the choice between these two more nuanced than a chip suggests. Jamestown Blue reads slightly lighter here — a subtle but real difference in how open the space feels.
Color Details
Jamestown Blue vs S 4010-B70G Simulated Comparison
5 simulated room previews — drag the slider on each to see Jamestown Blue on one side and S 4010-B70G 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 Jamestown Blue comparisons
See how Jamestown Blue stacks up against other well-photographed colors across different brands and tones.
