Match Sea Urchin 3
Dulux Sea Urchin 3 is a mid-tone shade, cool in character with an LRV of 40. 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 40 vs 39), so neither reads brighter in a room. A ΔE of 1.2 means the difference barely reads in a finished room.
With LRVs of 40 and 40, the two reflect almost the same amount of light. At ΔE 2.6 you'd need them side by side to tell them apart.
Sea Urchin 3 reads slightly lighter (LRV 40 vs 33), a gap that shows most in low-lit rooms. At ΔE 3.4 they're clearly different, yet close enough to share a room.
A 5-point LRV gap (40 vs 35) makes Sea Urchin 3 the marginally brighter of the two. The ΔE 3.8 gap is real but not dramatic — distinct as a choice, harmonious together.
With LRVs of 40 and 40, the two reflect almost the same amount of light. At ΔE 4.3 they're clearly different, yet close enough to share a room.
Their light reflectance is nearly identical (LRV 41 vs 40), so neither reads brighter in a room. The ΔE 4.3 gap is real but not dramatic — distinct as a choice, harmonious together.
Their light reflectance is nearly identical (LRV 41 vs 40), so neither reads brighter in a room. The ΔE 4.3 gap is real but not dramatic — distinct as a choice, harmonious together.
A 4-point LRV gap (44 vs 40) makes River Valley the marginally brighter of the two. The ΔE 5.8 gap is real but not dramatic — distinct as a choice, harmonious together.
With LRVs of 40 and 39, the two reflect almost the same amount of light. At ΔE 5.9 they're clearly different, yet close enough to share a room.
With LRVs of 40 and 40, the two reflect almost the same amount of light. At ΔE 6.6 they're clearly different, yet close enough to share a room.
A 9-point LRV gap (40 vs 31) makes Sea Urchin 3 the marginally brighter of the two. The ΔE 7.1 gap is real but not dramatic — distinct as a choice, harmonious together.
A 4-point LRV gap (44 vs 40) makes Celestial Blue the marginally brighter of the two. The ΔE 7.2 gap is real but not dramatic — distinct as a choice, harmonious together.
With LRVs of 40 and 39, the two reflect almost the same amount of light. At ΔE 7.4 they're clearly different, yet close enough to share a room.
A 6-point LRV gap (46 vs 40) makes Mediterranean Dusk the marginally brighter of the two. The ΔE 8.3 gap is real but not dramatic — distinct as a choice, harmonious together.