Match RAL 660-4
RAL Effect RAL 660-4 is a mid-tone shade with an LRV of 31. The matches below are ranked by ΔE, a perceptual color-difference score.
View full RAL 660-4 color page →
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.
Epimethius reads slightly lighter (LRV 40 vs 31), a gap that shows most in low-lit rooms. At ΔE 4.2 they're clearly different, yet close enough to share a room.
Baltimore Sky reads slightly lighter (LRV 37 vs 31), a gap that shows most in low-lit rooms. At ΔE 5.4 they're clearly different, yet close enough to share a room.
RAL 660-4 reads slightly lighter (LRV 31 vs 23), a gap that shows most in low-lit rooms. At ΔE 8.1 they're clearly different, yet close enough to share a room.
A 5-point LRV gap (36 vs 31) makes Javan Dawn 1 the marginally brighter of the two. The ΔE 8.9 gap is real but not dramatic — distinct as a choice, harmonious together.
Their light reflectance is nearly identical (LRV 31 vs 30), so neither reads brighter in a room. A ΔE of 17.0 puts them firmly in different territory — a strong contrast if combined.
Their light reflectance is nearly identical (LRV 31 vs 29), so neither reads brighter in a room. A ΔE of 17.3 puts them firmly in different territory — a strong contrast if combined.
Light green reflects far more light (LRV 44 vs 31), opening up a space where RAL 660-4 encloses it. At ΔE 18.6 these are two genuinely different directions, not variations on a theme.
A 4-point LRV gap (31 vs 27) makes RAL 660-4 the marginally brighter of the two. A ΔE of 27.0 puts them firmly in different territory — a strong contrast if combined.
A 5-point LRV gap (36 vs 31) makes S 3010-R80B the marginally brighter of the two. A ΔE of 28.6 puts them firmly in different territory — a strong contrast if combined.