River Valley vs Mountain Stream
Where River Valley belongs to Dulux's range, Mountain Stream is a PPG color. Both sit in the blue family, which is useful context if you're narrowing within a single hue direction. River Valley (LRV 44) reflects noticeably more light than Mountain Stream (LRV 41), a difference of 3 points that becomes especially apparent in rooms with limited natural light. At ΔE 2.1, these are close — the kind of difference that matters when choosing between them, but doesn't read strongly in a finished 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
River Valley vs Mountain Stream Simulated Comparison
5 simulated room previews — drag the slider on each to see River Valley on one side and Mountain Stream 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 River Valley comparisons
See how River Valley stacks up against other well-photographed colors across different brands and tones.
