Mountain Air vs S 1002-Y20R
Where Mountain Air belongs to Dulux's range, S 1002-Y20R is a NCS color. Hue-wise, Mountain Air belongs to the green-white family and S 1002-Y20R to the beige-greige family. Mountain Air (LRV 88) reflects noticeably more light than S 1002-Y20R (LRV 82), a difference of 6 points that becomes especially apparent in rooms with limited natural light. Both lean warm, so they'll behave similarly in mixed or changing light conditions. The ΔE 4.5 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. 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 Air vs S 1002-Y20R Simulated Comparison
5 simulated room previews — drag the slider on each to see Mountain Air on one side and S 1002-Y20R 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 Air comparisons
See how Mountain Air stacks up against other well-photographed colors across different brands and tones.
