Gustavian Blue vs RAL 180-1
Gustavian Blue is a Jotun color while RAL 180-1 comes from RAL Effect. Hue-wise, Gustavian Blue belongs to the blue-grey family and RAL 180-1 to the blue family. At LRV 49 vs 38, RAL 180-1 will read as the brighter of the two — a 10-point gap that matters most in north-facing or low-light rooms. At ΔE 6.9, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below you'll find 4 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Gustavian Blue vs RAL 180-1 in Real Spaces
4 real rooms side by side. Gustavian Blue and RAL 180-1 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. RAL 180-1 returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Bedroom
Bedroom walls are often seen under warm artificial light, a context that shifts both colors from how they look on a chip. The LRV gap is large enough that RAL 180-1 will make the room feel meaningfully brighter than Gustavian Blue would.
Kitchen
Kitchen lighting tends to be bright and directional, which sharpens contrast and makes undertone differences more apparent. The LRV gap is large enough that RAL 180-1 will make the room feel meaningfully brighter than Gustavian Blue would.
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. The LRV gap is large enough that RAL 180-1 will make the room feel meaningfully brighter than Gustavian Blue would.
Color Details
Gustavian Blue vs RAL 180-1 Simulated Comparison
5 simulated room previews — drag the slider on each to see Gustavian Blue on one side and RAL 180-1 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 Gustavian Blue comparisons
See how Gustavian Blue stacks up against other well-photographed colors across different brands and tones.
