Impromptu vs Major Blue
Impromptu and Major Blue come from the same Sherwin-Williams collection. Both sit in the blue family, which is useful context if you're narrowing within a single hue direction. The 6-point LRV gap — 29 for Major Blue vs 23 for Impromptu — means Major Blue will open up a space more effectively. Both share a cool character, which means they'll respond to light and surrounding materials in similar ways. ΔE 4.6 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
Impromptu vs Major Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Impromptu on one side and Major Blue 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 Impromptu comparisons
See how Impromptu stacks up against other well-photographed colors across different brands and tones.
