Undine vs Little Blue Box
Undine (Behr) and Little Blue Box (Sherwin-Williams) come from different manufacturers. Both sit in the blue family, which is useful context if you're narrowing within a single hue direction. The 6-point LRV gap — 49 for Little Blue Box vs 43 for Undine — means Little Blue Box will open up a space more effectively. Where Undine leans green and blue, Little Blue Box reads cool — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 2.7 puts them in subtle territory — distinguishable in direct comparison, less so from across a 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
Undine vs Little Blue Box Simulated Comparison
5 simulated room previews — drag the slider on each to see Undine on one side and Little Blue Box 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 Undine comparisons
See how Undine stacks up against other well-photographed colors across different brands and tones.
