Match Cosmic Cobalt
Behr Cosmic Cobalt is a deep, low-reflectance shade, cool in character with an LRV of 10. 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.
Seaport Blue reads slightly lighter (LRV 16 vs 10), a gap that shows most in low-lit rooms. At ΔE 2.3 you'd need them side by side to tell them apart.
Starry Night reads slightly lighter (LRV 13 vs 10), 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 10 vs 8), so neither reads brighter in a room. The ΔE 4.8 gap is real but not dramatic — distinct as a choice, harmonious together.
Blue Chip reads slightly lighter (LRV 13 vs 10), a gap that shows most in low-lit rooms. At ΔE 4.9 they're clearly different, yet close enough to share a room.
With LRVs of 10 and 9, the two reflect almost the same amount of light. At ΔE 5.3 they're clearly different, yet close enough to share a room.
Their light reflectance is nearly identical (LRV 11 vs 10), so neither reads brighter in a room. The ΔE 6.2 gap is real but not dramatic — distinct as a choice, harmonious together.
Their light reflectance is nearly identical (LRV 12 vs 10), so neither reads brighter in a room. The ΔE 8.7 gap is real but not dramatic — distinct as a choice, harmonious together.
With LRVs of 10 and 9, the two reflect almost the same amount of light. At ΔE 9.3 they're clearly different, yet close enough to share a room.
Their light reflectance is nearly identical (LRV 10 vs 8), so neither reads brighter in a room. The ΔE 9.8 gap is real but not dramatic — distinct as a choice, harmonious together.
With LRVs of 10 and 9, the two reflect almost the same amount of light. At ΔE 10.8 these are two genuinely different directions, not variations on a theme.
Pitch Blue reads slightly lighter (LRV 15 vs 10), a gap that shows most in low-lit rooms. At ΔE 16.6 these are two genuinely different directions, not variations on a theme.
Their light reflectance is nearly identical (LRV 10 vs 8), so neither reads brighter in a room. A ΔE of 19.5 puts them firmly in different territory — a strong contrast if combined.
A 5-point LRV gap (14 vs 10) makes Passageway the marginally brighter of the two. A ΔE of 25.0 puts them firmly in different territory — a strong contrast if combined.
A 10-point LRV gap (19 vs 10) makes S 5010-R90B the marginally brighter of the two. A ΔE of 28.3 puts them firmly in different territory — a strong contrast if combined.