River Valley vs Holly Glen
River Valley (Dulux) and Holly Glen (PPG) come from different manufacturers. Hue-wise, River Valley belongs to the blue family and Holly Glen to the blue-grey family. Their light reflectance values are nearly the same — 44 vs 45 — so neither will read significantly brighter or darker than the other. ΔE 4.8 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
River Valley vs Holly Glen Simulated Comparison
5 simulated room previews — drag the slider on each to see River Valley on one side and Holly Glen 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.







































