Citadel vs RAL 170-2
Citadel is a Benjamin Moore color while RAL 170-2 comes from RAL Effect. These are both blues, so the question isn't which hue to choose — it's where within blue to land. At LRV 42 vs 38, RAL 170-2 will read as the brighter of the two — a 3-point gap that matters most in north-facing or low-light rooms. At ΔE 6.7, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Citadel vs RAL 170-2 Simulated Comparison
5 simulated room previews — drag the slider on each to see Citadel on one side and RAL 170-2 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.
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