RAL 620-4 vs Deep Sea Dive
RAL 620-4 is a RAL Effect color while Deep Sea Dive comes from Sherwin-Williams. These are both blues, so the question isn't which hue to choose — it's where within blue to land. With LRVs of 9 and 10, they'll behave almost identically in terms of how much light they reflect back into a room. At ΔE 7.9, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
RAL 620-4 vs Deep Sea Dive in Real Spaces
3 real rooms side by side. RAL 620-4 and Deep Sea Dive 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
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.
Bedroom
Bedroom walls are often seen under warm artificial light, a context that shifts both colors from how they look on a chip. Side by side like this, the difference is easy to read — which is exactly why seeing them in a real space is more useful than comparing chips.
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. Side by side like this, the difference is easy to read — which is exactly why seeing them in a real space is more useful than comparing chips.
Color Details
RAL 620-4 vs Deep Sea Dive Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 620-4 on one side and Deep Sea Dive 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 620-4 comparisons
See how RAL 620-4 stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 9, White Dove is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 9), opening up a space where RAL 620-4 encloses it.
Evergreen Fog reflects far more light (LRV 30 vs 9), opening up a space where RAL 620-4 encloses it.
Agreeable Gray reflects far more light (LRV 60 vs 9), opening up a space where RAL 620-4 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 RAL 620-4 encloses it.
At LRV 55 vs 9, Tranquil Dawn is decisively the brighter choice.
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 RAL 620-4 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.
A 3-point LRV gap (12 vs 9) makes Pewter Green the marginally brighter of the two.
At LRV 68 vs 9, Skimming Stone is decisively the brighter choice.
A 3-point LRV gap (12 vs 9) makes Vintage Vogue the marginally brighter of the two.
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 RAL 620-4 encloses it.
With LRVs of 9 and 7, the two reflect almost the same amount of light.
Cement grey reflects far more light (LRV 24 vs 9), opening up a space where RAL 620-4 encloses it.
Guilford Green reflects far more light (LRV 57 vs 9), opening up a space where RAL 620-4 encloses it.