Gentian blue vs RAL 630-4
Where Gentian blue belongs to RAL Classic's range, RAL 630-4 is a RAL Effect color. These are both blues, so the question isn't which hue to choose — it's where within blue to land. Gentian blue (LRV 9) reflects noticeably more light than RAL 630-4 (LRV 6), a difference of 3 points that becomes especially apparent in rooms with limited natural light. The ΔE 8.1 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Gentian blue vs RAL 630-4 Simulated Comparison
5 simulated room previews — drag the slider on each to see Gentian blue on one side and RAL 630-4 on the other.
Digital color is approximate. These simulations are generated from the manufacturer's hex values and overlaid on grayscale room photos — your screen's calibration, brightness, and viewing angle all affect how they render. Before committing to either color, test physical samples in your own space under the light you actually live with.
More Gentian blue comparisons
See how Gentian blue stacks up against other well-photographed colors across different brands and tones.
Ammonite reflects far more light (LRV 69 vs 9), opening up a space where Gentian blue encloses it.
At LRV 83 vs 9, White Dove is decisively the brighter choice.
A 4-point LRV gap (9 vs 6) makes Gentian blue the marginally brighter of the two.
Purbeck Stone reflects far more light (LRV 52 vs 9), opening up a space where Gentian blue encloses it.
Evergreen Fog reflects far more light (LRV 30 vs 9), opening up a space where Gentian blue encloses it.
At LRV 52 vs 9, Mizzle is decisively the brighter choice.
Agreeable Gray reflects far more light (LRV 60 vs 9), opening up a space where Gentian blue encloses it.
At LRV 58 vs 9, Accessible Beige is decisively the brighter choice.
At LRV 27 vs 9, Denim Drift is decisively the brighter choice.
French Gray reflects far more light (LRV 43 vs 9), opening up a space where Gentian blue encloses it.
Gentian blue reads slightly lighter (LRV 9 vs 4), a gap that shows most in low-lit rooms.
At LRV 55 vs 9, Tranquil Dawn is decisively the brighter choice.
A 4-point LRV gap (13 vs 9) makes Bancha the marginally brighter of the two.
At LRV 44 vs 9, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 9), opening up a space where Gentian blue encloses it.
Artichoke reflects far more light (LRV 21 vs 9), opening up a space where Gentian blue encloses it.
At LRV 66 vs 9, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 9, Shoji White is decisively the brighter choice.
At LRV 83 vs 9, Snowbound is decisively the brighter choice.
Pigeon reflects far more light (LRV 51 vs 9), opening up a space where Gentian blue encloses it.
Their light reflectance is nearly identical (LRV 12 vs 9), so neither reads brighter in a room.
Their light reflectance is nearly identical (LRV 9 vs 8), so neither reads brighter in a room.
At LRV 68 vs 9, Skimming Stone is decisively the brighter choice.
Dix Blue reflects far more light (LRV 41 vs 9), opening up a space where Gentian blue encloses it.
Their light reflectance is nearly identical (LRV 12 vs 9), so neither reads brighter in a room.
At LRV 45 vs 9, Saybrook Sage is decisively the brighter choice.
Pale Green reflects far more light (LRV 31 vs 9), opening up a space where Gentian blue encloses it.