Match Impromptu
Sherwin-Williams Impromptu is a deep, low-reflectance shade, cool in character with an LRV of 23. The matches below are the closest equivalents available across every brand on Pontata, ranked by ΔE — a perceptual color difference score. A ΔE under 3 is subtle; under 10 is noticeable but harmonious; above 25 means genuinely different colors.
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Closest matches across every brand
One match per brand, ranked by ΔE — a perceptual color difference score calculated from Lab color space values. Lower is closer. Click any card to compare side by side in simulated rooms.
Bellflower reads slightly lighter
Yosemite Blue reads slightly lighter
EffectImpromptu reads slightly lighter
Delicate Cornflower reads slightly lighter
Sea Emerald reads slightly lighter
Impromptu reads slightly lighter
Impromptu reads slightly lighter