Sapphire blue vs RAL 620-5
Where Sapphire blue belongs to RAL Classic's range, RAL 620-5 is a RAL Effect 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 4), so they'll read as similarly Dark in most lighting conditions. The ΔE 5.8 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Sapphire blue vs RAL 620-5 in Real Spaces
2 real rooms side by side. Sapphire blue and RAL 620-5 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.
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. The distinction reads clearly at room scale, making the choice between them concrete.
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. The distinction reads clearly at room scale, making the choice between them concrete.
Color Details
Sapphire blue vs RAL 620-5 Simulated Comparison
5 simulated room previews — drag the slider on each to see Sapphire blue on one side and RAL 620-5 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 Sapphire blue comparisons
See how Sapphire blue stacks up against other well-photographed colors across different brands and tones.
