Cosmic Blue vs Blue Ground
Where Cosmic Blue belongs to Behr's range, Blue Ground is a Farrow & Ball color. Both sit in the blue family, which is useful context if you're narrowing within a single hue direction. Blue Ground (LRV 49) reflects noticeably more light than Cosmic Blue (LRV 47), a difference of 3 points that becomes especially apparent in rooms with limited natural light. Cosmic Blue runs blue while Blue Ground is decidedly cool, which means they'll respond very differently to warm vs cool light sources. The ΔE 4.6 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Cosmic Blue vs Blue Ground in Real Spaces
3 real rooms side by side. Cosmic Blue and Blue Ground 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
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. Side by side like this, the difference is easy to read — which is exactly why seeing them in a real space is more useful than comparing chips.
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.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. The distinction reads clearly at room scale, making the choice between them concrete.
Color Details
Cosmic Blue vs Blue Ground Simulated Comparison
5 simulated room previews — drag the slider on each to see Cosmic Blue on one side and Blue Ground 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.
