Match Gristmill
PPG Gristmill is a mid-tone shade with an LRV of 29. 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 29 and 27, the two reflect almost the same amount of light. At ΔE 1.1 you'd need them side by side to tell them apart.
Their light reflectance is nearly identical (LRV 30 vs 29), so neither reads brighter in a room. A ΔE of 1.7 means the difference barely reads in a finished room.
With LRVs of 31 and 29, the two reflect almost the same amount of light. At ΔE 1.8 you'd need them side by side to tell them apart.
With LRVs of 29 and 29, the two reflect almost the same amount of light. At ΔE 2.5 you'd need them side by side to tell them apart.
With LRVs of 29 and 29, the two reflect almost the same amount of light. At ΔE 4.9 they're clearly different, yet close enough to share a room.
Portland Stone - Dark reads slightly lighter (LRV 33 vs 29), a gap that shows most in low-lit rooms. At ΔE 5.0 they're clearly different, yet close enough to share a room.
A 6-point LRV gap (35 vs 29) makes Celtic Forest 2 the marginally brighter of the two. The ΔE 6.5 gap is real but not dramatic — distinct as a choice, harmonious together.
With LRVs of 31 and 29, the two reflect almost the same amount of light. At ΔE 7.8 they're clearly different, yet close enough to share a room.
With LRVs of 29 and 26, the two reflect almost the same amount of light. At ΔE 8.8 they're clearly different, yet close enough to share a room.
With LRVs of 30 and 29, the two reflect almost the same amount of light. At ΔE 10.1 these are two genuinely different directions, not variations on a theme.
With LRVs of 29 and 29, the two reflect almost the same amount of light. At ΔE 11.1 these are two genuinely different directions, not variations on a theme.