Match Clam Shell
PPG Clam Shell is a deep, low-reflectance shade with an LRV of 18. 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.
Their light reflectance is nearly identical (LRV 18 vs 18), so neither reads brighter in a room. A ΔE of 0.7 means the difference barely reads in a finished room.
With LRVs of 19 and 18, the two reflect almost the same amount of light. At ΔE 0.8 you'd need them side by side to tell them apart.
With LRVs of 18 and 18, the two reflect almost the same amount of light. At ΔE 1.0 you'd need them side by side to tell them apart.
Their light reflectance is nearly identical (LRV 20 vs 18), so neither reads brighter in a room. A ΔE of 1.4 means the difference barely reads in a finished room.
Their light reflectance is nearly identical (LRV 18 vs 18), so neither reads brighter in a room. A ΔE of 1.8 means the difference barely reads in a finished room.
Their light reflectance is nearly identical (LRV 18 vs 18), so neither reads brighter in a room. A ΔE of 1.9 means the difference barely reads in a finished room.
Their light reflectance is nearly identical (LRV 21 vs 18), so neither reads brighter in a room. The ΔE 3.1 gap is real but not dramatic — distinct as a choice, harmonious together.
Olive grey reads slightly lighter (LRV 22 vs 18), a gap that shows most in low-lit rooms. At ΔE 3.8 they're clearly different, yet close enough to share a room.
Their light reflectance is nearly identical (LRV 20 vs 18), so neither reads brighter in a room. The ΔE 4.0 gap is real but not dramatic — distinct as a choice, harmonious together.
With LRVs of 21 and 18, the two reflect almost the same amount of light. At ΔE 4.2 they're clearly different, yet close enough to share a room.
A 4-point LRV gap (22 vs 18) makes Praline Melt the marginally brighter of the two. The ΔE 4.5 gap is real but not dramatic — distinct as a choice, harmonious together.
With LRVs of 20 and 18, the two reflect almost the same amount of light. At ΔE 4.9 they're clearly different, yet close enough to share a room.
Warm Eucalyptus (US) reads slightly lighter (LRV 21 vs 18), a gap that shows most in low-lit rooms. At ΔE 7.3 they're clearly different, yet close enough to share a room.
With LRVs of 18 and 17, the two reflect almost the same amount of light. At ΔE 9.4 they're clearly different, yet close enough to share a room.