St. Pauls Blue vs S 5010-R90B
St. Pauls Blue (Jotun) and S 5010-R90B (NCS) come from different manufacturers. These are both blue-greys, so the question isn't which hue to choose — it's where within blue-grey to land. The 3-point LRV gap — 19 for S 5010-R90B vs 17 for St. Pauls Blue — means S 5010-R90B will open up a space more effectively. Where St. Pauls Blue leans neutral, S 5010-R90B reads cool — a distinction that shifts noticeably depending on the light source and surrounding finishes. ΔE 5.2 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
St. Pauls Blue vs S 5010-R90B Simulated Comparison
5 simulated room previews — drag the slider on each to see St. Pauls Blue 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 St. Pauls Blue comparisons
See how St. Pauls Blue stacks up against other well-photographed colors across different brands and tones.
