True Copper vs Umber Rust
Where True Copper belongs to Behr's range, Umber Rust is a Sherwin-Williams color. Hue-wise, True Copper belongs to the beige-pink family and Umber Rust to the beige family. True Copper (LRV 13) reflects noticeably more light than Umber Rust (LRV 10), a difference of 3 points that becomes especially apparent in rooms with limited natural light. True Copper runs red while Umber Rust is decidedly warm, which means they'll respond very differently to warm vs cool light sources. The ΔE 8.6 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
True Copper vs Umber Rust Simulated Comparison
5 simulated room previews — drag the slider on each to see True Copper on one side and Umber Rust 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 True Copper comparisons
See how True Copper stacks up against other well-photographed colors across different brands and tones.
