Cosmic Blue vs Passion Blue
Where Cosmic Blue belongs to Behr's range, Passion Blue is a Benjamin Moore color. These are both blues, so the question isn't which hue to choose — it's where within blue to land. They have nearly identical light reflectance values (47 vs 48), so they'll read as similarly Medium in most lighting conditions. Both lean blue, so they'll behave similarly in mixed or changing light conditions. At ΔE 1.6, these are close — the kind of difference that matters when choosing between them, but doesn't read strongly in a finished room. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Cosmic Blue vs Passion Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Cosmic Blue on one side and Passion 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 Cosmic Blue comparisons
See how Cosmic Blue stacks up against other well-photographed colors across different brands and tones.
