S 4010-B70G vs Thunderbolt
Where S 4010-B70G belongs to NCS's range, Thunderbolt is a PPG color. Hue-wise, S 4010-B70G belongs to the blue-grey family and Thunderbolt to the grey family. S 4010-B70G (LRV 28) reflects noticeably more light than Thunderbolt (LRV 23), a difference of 5 points that becomes especially apparent in rooms with limited natural light. The ΔE 5.6 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
S 4010-B70G vs Thunderbolt Simulated Comparison
5 simulated room previews — drag the slider on each to see S 4010-B70G on one side and Thunderbolt 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 S 4010-B70G comparisons
See how S 4010-B70G stacks up against other well-photographed colors across different brands and tones.
