Nordic Sky vs RAL 670-5
Where Nordic Sky belongs to Dulux's range, RAL 670-5 is a RAL Effect color. Both sit in the blue family, which is useful context if you're narrowing within a single hue direction. Nordic Sky (LRV 40) reflects noticeably more light than RAL 670-5 (LRV 35), a difference of 5 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 11.1, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Nordic Sky vs RAL 670-5 in Real Spaces
3 real rooms side by side. Seeing Nordic Sky and RAL 670-5 in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
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 brightness difference is modest but present — Nordic Sky gives the walls a little more lift.
Kitchen
In a kitchen, colors are seen under bright task lighting that amplifies undertones — what reads neutral elsewhere can show its hand here. Nordic Sky reads slightly lighter here — a subtle but real difference in how open the space feels.
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. Nordic Sky reads slightly lighter here — a subtle but real difference in how open the space feels.
Color Details
Nordic Sky vs RAL 670-5 Simulated Comparison
5 simulated room previews — drag the slider on each to see Nordic Sky on one side and RAL 670-5 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 Nordic Sky comparisons
See how Nordic Sky stacks up against other well-photographed colors across different brands and tones.
