Mountain Pine vs Neptune Seas
Mountain Pine is a Behr color while Neptune Seas comes from Dulux. These are both blue-greys, so the question isn't which hue to choose — it's where within blue-grey to land. At LRV 19 vs 15, Neptune Seas will read as the brighter of the two — a 4-point gap that matters most in north-facing or low-light rooms. The tonal difference — Mountain Pine's green and blue character against Neptune Seas's cool — becomes most visible against white trim or in morning light. At ΔE 4.2, 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
Mountain Pine vs Neptune Seas Simulated Comparison
5 simulated room previews — drag the slider on each to see Mountain Pine on one side and Neptune Seas 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 Pine comparisons
See how Mountain Pine stacks up against other well-photographed colors across different brands and tones.








































