Brown grey vs Prelude
Where Brown grey belongs to RAL Classic's range, Prelude is a Sherwin-Williams color. Hue-wise, Brown grey belongs to the greige-grey family and Prelude to the grey family. They have nearly identical light reflectance values (11 vs 9), so they'll read as similarly Dark in most lighting conditions. The ΔE 4.1 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
Brown grey vs Prelude Simulated Comparison
5 simulated room previews — drag the slider on each to see Brown grey on one side and Prelude 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 Brown grey comparisons
See how Brown grey stacks up against other well-photographed colors across different brands and tones.
