Grey Heron vs Viaduct
Both from Sherwin-Williams's palette. These are both greige-greys, so the question isn't which hue to choose — it's where within greige-grey to land. Grey Heron (LRV 65) reflects noticeably more light than Viaduct (LRV 50), a difference of 15 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 8.4 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
Grey Heron vs Viaduct Simulated Comparison
5 simulated room previews — drag the slider on each to see Grey Heron on one side and Viaduct 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 Grey Heron comparisons
See how Grey Heron stacks up against other well-photographed colors across different brands and tones.
