Yosemite Blue vs Impromptu
Where Yosemite Blue belongs to Benjamin Moore's range, Impromptu is a Sherwin-Williams color. These are both blues, so the question isn't which hue to choose — it's where within blue to land. Yosemite Blue (LRV 33) reflects noticeably more light than Impromptu (LRV 23), a difference of 10 points that becomes especially apparent in rooms with limited natural light. Yosemite Blue runs blue while Impromptu is decidedly cool, which means they'll respond very differently to warm vs cool light sources. The ΔE 5.6 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
Yosemite Blue vs Impromptu Simulated Comparison
5 simulated room previews — drag the slider on each to see Yosemite Blue on one side and Impromptu 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 Yosemite Blue comparisons
See how Yosemite Blue stacks up against other well-photographed colors across different brands and tones.
