Ultramarine blue vs Pewter Green
Ultramarine blue (RAL Classic) and Pewter Green (Sherwin-Williams) come from different manufacturers. Ultramarine blue reads as blue, while Pewter Green reads as green-grey — two distinct hue families, not close cousins. The 4-point LRV gap — 12 for Pewter Green vs 7 for Ultramarine blue — means Pewter Green will open up a space more effectively. A ΔE of 51.8 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Ultramarine blue vs Pewter Green Simulated Comparison
5 simulated room previews — drag the slider on each to see Ultramarine blue on one side and Pewter Green 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 Ultramarine blue comparisons
See how Ultramarine blue stacks up against other well-photographed colors across different brands and tones.







































