Summer Blue vs Gustavian Blue
Where Summer Blue belongs to Benjamin Moore's range, Gustavian Blue is a Jotun color. Summer Blue reads as blue, while Gustavian Blue reads as blue-grey — two distinct hue families, not close cousins. Summer Blue (LRV 45) reflects noticeably more light than Gustavian Blue (LRV 38), a difference of 7 points that becomes especially apparent in rooms with limited natural light. Summer Blue runs blue while Gustavian Blue is decidedly cool, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 20.5, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Summer Blue vs Gustavian Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Summer Blue on one side and Gustavian Blue 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 Summer Blue comparisons
See how Summer Blue stacks up against other well-photographed colors across different brands and tones.








































