Match Blue Shamrock
PPG Blue Shamrock is a light-reflective shade with an LRV of 57. 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.
With LRVs of 59 and 57, the two reflect almost the same amount of light. At ΔE 1.0 you'd need them side by side to tell them apart.
With LRVs of 58 and 57, the two reflect almost the same amount of light. At ΔE 1.4 you'd need them side by side to tell them apart.
Their light reflectance is nearly identical (LRV 58 vs 57), so neither reads brighter in a room. A ΔE of 1.6 means the difference barely reads in a finished room.
With LRVs of 57 and 57, the two reflect almost the same amount of light. At ΔE 1.7 you'd need them side by side to tell them apart.
With LRVs of 59 and 57, the two reflect almost the same amount of light. At ΔE 2.5 you'd need them side by side to tell them apart.
Their light reflectance is nearly identical (LRV 59 vs 57), so neither reads brighter in a room. A ΔE of 2.8 means the difference barely reads in a finished room.
Tumbled Glass reads slightly lighter (LRV 63 vs 57), a gap that shows most in low-lit rooms. At ΔE 3.4 they're clearly different, yet close enough to share a room.
Brighton reads slightly lighter (LRV 63 vs 57), a gap that shows most in low-lit rooms. At ΔE 4.0 they're clearly different, yet close enough to share a room.
Their light reflectance is nearly identical (LRV 58 vs 57), so neither reads brighter in a room. The ΔE 4.1 gap is real but not dramatic — distinct as a choice, harmonious together.
A 4-point LRV gap (57 vs 53) makes Blue Shamrock the marginally brighter of the two. The ΔE 4.2 gap is real but not dramatic — distinct as a choice, harmonious together.
Blue Shamrock reads slightly lighter (LRV 57 vs 50), a gap that shows most in low-lit rooms. At ΔE 4.6 they're clearly different, yet close enough to share a room.
Their light reflectance is nearly identical (LRV 59 vs 57), so neither reads brighter in a room. The ΔE 5.2 gap is real but not dramatic — distinct as a choice, harmonious together.
Their light reflectance is nearly identical (LRV 59 vs 57), so neither reads brighter in a room. The ΔE 5.3 gap is real but not dramatic — distinct as a choice, harmonious together.
Blue Shamrock reads slightly lighter (LRV 57 vs 53), a gap that shows most in low-lit rooms. At ΔE 5.4 they're clearly different, yet close enough to share a room.