Mountain Stream vs Aquitaine
Mountain Stream (PPG) and Aquitaine (Sherwin-Williams) come from different manufacturers. These are both blues, so the question isn't which hue to choose — it's where within blue to land. The 3-point LRV gap — 41 for Mountain Stream vs 38 for Aquitaine — means Mountain Stream will open up a space more effectively. ΔE 4.0 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
Mountain Stream vs Aquitaine Simulated Comparison
5 simulated room previews — drag the slider on each to see Mountain Stream on one side and Aquitaine 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 Mountain Stream comparisons
See how Mountain Stream stacks up against other well-photographed colors across different brands and tones.








































