S 5010-R90B vs RAL 540-4
S 5010-R90B is a NCS color while RAL 540-4 comes from RAL Effect. S 5010-R90B reads as blue-grey, while RAL 540-4 reads as pink-purple — two distinct hue families, not close cousins. With LRVs of 19 and 21, they'll behave almost identically in terms of how much light they reflect back into a room. At ΔE 28.7, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. 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 5010-R90B vs RAL 540-4 Simulated Comparison
5 simulated room previews — drag the slider on each to see S 5010-R90B on one side and RAL 540-4 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 5010-R90B comparisons
See how S 5010-R90B stacks up against other well-photographed colors across different brands and tones.
