Match Castle Walls
Benjamin Moore Castle Walls is a mid-tone shade, neutral in character with an LRV of 41. 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.
Their light reflectance is nearly identical (LRV 43 vs 41), so neither reads brighter in a room. A ΔE of 1.6 means the difference barely reads in a finished room.
With LRVs of 42 and 41, the two reflect almost the same amount of light. At ΔE 1.7 you'd need them side by side to tell them apart.
Their light reflectance is nearly identical (LRV 41 vs 39), so neither reads brighter in a room. A ΔE of 1.8 means the difference barely reads in a finished room.
With LRVs of 41 and 38, the two reflect almost the same amount of light. At ΔE 2.1 you'd need them side by side to tell them apart.
Their light reflectance is nearly identical (LRV 41 vs 40), so neither reads brighter in a room. A ΔE of 2.3 means the difference barely reads in a finished room.
Gaelic Garden reads slightly lighter (LRV 45 vs 41), a gap that shows most in low-lit rooms. At ΔE 2.7 you'd need them side by side to tell them apart.
With LRVs of 41 and 40, the two reflect almost the same amount of light. At ΔE 2.9 you'd need them side by side to tell them apart.
With LRVs of 41 and 41, the two reflect almost the same amount of light. At ΔE 2.9 you'd need them side by side to tell them apart.
Their light reflectance is nearly identical (LRV 41 vs 40), so neither reads brighter in a room. The ΔE 3.3 gap is real but not dramatic — distinct as a choice, harmonious together.
With LRVs of 41 and 41, the two reflect almost the same amount of light. At ΔE 3.4 they're clearly different, yet close enough to share a room.
Celestial Blue reads slightly lighter (LRV 44 vs 41), a gap that shows most in low-lit rooms. At ΔE 3.5 they're clearly different, yet close enough to share a room.
With LRVs of 41 and 38, the two reflect almost the same amount of light. At ΔE 4.3 they're clearly different, yet close enough to share a room.
A 4-point LRV gap (45 vs 41) makes Agate Grey the marginally brighter of the two. The ΔE 4.4 gap is real but not dramatic — distinct as a choice, harmonious together.
With LRVs of 41 and 41, the two reflect almost the same amount of light. At ΔE 4.6 they're clearly different, yet close enough to share a room.