Blue Square vs S 5010-R90B
Where Blue Square belongs to Behr's range, S 5010-R90B is a NCS color. Hue-wise, Blue Square belongs to the blue family and S 5010-R90B to the blue-grey family. They have nearly identical light reflectance values (20 vs 19), so they'll read as similarly Dark in most lighting conditions. Blue Square runs blue while S 5010-R90B is decidedly cool, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 15.4, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Blue Square vs S 5010-R90B Simulated Comparison
5 simulated room previews — drag the slider on each to see Blue Square on one side and S 5010-R90B 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 Blue Square comparisons
See how Blue Square stacks up against other well-photographed colors across different brands and tones.
