Match Impromptu
Sherwin-Williams Impromptu is a deep, low-reflectance shade, cool in character with an LRV of 23. The matches below are ranked by ΔE, a perceptual color-difference score.
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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 (LRV 27 vs 23), a gap that shows most in low-lit rooms. At ΔE 3.6 they're clearly different, yet close enough to share a room.
A 6-point LRV gap (29 vs 23) makes Major Blue the marginally brighter of the two. The ΔE 4.6 gap is real but not dramatic — distinct as a choice, harmonious together.
Yosemite Blue reads slightly lighter (LRV 33 vs 23), a gap that shows most in low-lit rooms. At ΔE 5.6 they're clearly different, yet close enough to share a room.
Their light reflectance is nearly identical (LRV 23 vs 23), so neither reads brighter in a room. The ΔE 6.0 gap is real but not dramatic — distinct as a choice, harmonious together.
St Giles Blue reads slightly lighter (LRV 30 vs 23), a gap that shows most in low-lit rooms. At ΔE 9.9 they're clearly different, yet close enough to share a room.
With LRVs of 25 and 23, the two reflect almost the same amount of light. At ΔE 10.6 these are two genuinely different directions, not variations on a theme.
Delicate Cornflower reads slightly lighter (LRV 32 vs 23), a gap that shows most in low-lit rooms. At ΔE 14.0 these are two genuinely different directions, not variations on a theme.
A 3-point LRV gap (26 vs 23) makes Sea Emerald the marginally brighter of the two. A ΔE of 27.5 puts them firmly in different territory — a strong contrast if combined.
A 9-point LRV gap (23 vs 14) makes Impromptu the marginally brighter of the two. A ΔE of 27.6 puts them firmly in different territory — a strong contrast if combined.
A 3-point LRV gap (23 vs 19) makes Impromptu the marginally brighter of the two. A ΔE of 28.6 puts them firmly in different territory — a strong contrast if combined.