RAL 630-4 vs Indigo
Where RAL 630-4 belongs to RAL Effect's range, Indigo is a Sherwin-Williams color. Both sit in the blue family, which is useful context if you're narrowing within a single hue direction. They have nearly identical light reflectance values (6 vs 6), so they'll read as similarly Dark in most lighting conditions. At ΔE 1.6, these are close — the kind of difference that matters when choosing between them, but doesn't read strongly in a finished room. Below you'll find 5 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
RAL 630-4 vs Indigo in Real Spaces
5 real rooms side by side. RAL 630-4 and Indigo are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Living Room
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The two are close enough that the choice comes down to finer qualities — undertone, texture, what the color sits next to.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. At this scale the difference is subtle — you'd need them side by side, as shown here, to reliably tell them apart.
Kitchen
In a kitchen, colors are seen under bright task lighting that amplifies undertones — what reads neutral elsewhere can show its hand here. At this scale the difference is subtle — you'd need them side by side, as shown here, to reliably tell them apart.
Bathroom
Bathrooms are one of the few spaces where you're genuinely enclosed by the paint color, which makes the choice between these two more consequential. At this scale the difference is subtle — you'd need them side by side, as shown here, to reliably tell them apart.
House
Seen across an entire facade, subtle tonal differences become pronounced. What reads as nearly the same on a chip often reads as clearly different at scale. At this scale the difference is subtle — you'd need them side by side, as shown here, to reliably tell them apart.
Color Details
RAL 630-4 vs Indigo Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 630-4 on one side and Indigo 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 RAL 630-4 comparisons
See how RAL 630-4 stacks up against other well-photographed colors across different brands and tones.
White Dove reflects far more light (LRV 83 vs 6), opening up a space where RAL 630-4 encloses it.
At LRV 52 vs 6, Purbeck Stone is decisively the brighter choice.
At LRV 30 vs 6, Evergreen Fog is decisively the brighter choice.
At LRV 60 vs 6, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 6), opening up a space where RAL 630-4 encloses it.
Denim Drift reflects far more light (LRV 27 vs 6), opening up a space where RAL 630-4 encloses it.
At LRV 43 vs 6, French Gray is decisively the brighter choice.
Tranquil Dawn reflects far more light (LRV 55 vs 6), opening up a space where RAL 630-4 encloses it.
Hardwick White reflects far more light (LRV 44 vs 6), opening up a space where RAL 630-4 encloses it.
At LRV 84 vs 6, Pure White is decisively the brighter choice.
Balboa Mist reflects far more light (LRV 66 vs 6), opening up a space where RAL 630-4 encloses it.
Shoji White reflects far more light (LRV 74 vs 6), opening up a space where RAL 630-4 encloses it.
Pewter Green reads slightly lighter (LRV 12 vs 6), a gap that shows most in low-lit rooms.
With LRVs of 8 and 6, the two reflect almost the same amount of light.
Skimming Stone reflects far more light (LRV 68 vs 6), opening up a space where RAL 630-4 encloses it.
Vintage Vogue reads slightly lighter (LRV 12 vs 6), a gap that shows most in low-lit rooms.
Saybrook Sage reflects far more light (LRV 45 vs 6), opening up a space where RAL 630-4 encloses it.
At LRV 31 vs 6, Pale Green is decisively the brighter choice.