Match RAL 650-4
RAL Effect RAL 650-4 is a deep, low-reflectance shade with an LRV of 6. 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.
A 3-point LRV gap (9 vs 6) makes Venetian Crystal 2 the marginally brighter of the two. A ΔE of 0.4 means the difference barely reads in a finished room.
A 4-point LRV gap (10 vs 6) makes Caribbean Azure the marginally brighter of the two. A ΔE of 2.7 means the difference barely reads in a finished room.
At LRV NaN vs NaN, Blue Grotto is decisively the brighter choice. The ΔE 3.3 gap is real but not dramatic — distinct as a choice, harmonious together.
A 6-point LRV gap (12 vs 6) makes Capri blue the marginally brighter of the two. The ΔE 4.0 gap is real but not dramatic — distinct as a choice, harmonious together.
Traditional Blue reads slightly lighter (LRV 9 vs 6), a gap that shows most in low-lit rooms. At ΔE 7.6 they're clearly different, yet close enough to share a room.
A 4-point LRV gap (10 vs 6) makes Queen of the Night 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 8 vs 6), so neither reads brighter in a room. A ΔE of 11.2 puts them firmly in different territory — a strong contrast if combined.
A 4-point LRV gap (10 vs 6) makes Stiffkey Blue the marginally brighter of the two. A ΔE of 17.2 puts them firmly in different territory — a strong contrast if combined.
A 9-point LRV gap (14 vs 6) makes Passageway the marginally brighter of the two. A ΔE of 20.6 puts them firmly in different territory — a strong contrast if combined.
With LRVs of 8 and 6, the two reflect almost the same amount of light. At ΔE 24.7 these are two genuinely different directions, not variations on a theme.