Chilly Blue vs Opal Waters
Both from Behr's palette. These are both blues, so the question isn't which hue to choose — it's where within blue to land. Opal Waters (LRV 53) reflects noticeably more light than Chilly Blue (LRV 38), a difference of 15 points that becomes especially apparent in rooms with limited natural light. Both lean blue, so they'll behave similarly in mixed or changing light conditions. With a ΔE of 11.9, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Chilly Blue vs Opal Waters in Real Spaces
1 real room side by side. Seeing Chilly Blue and Opal Waters in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
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. The LRV gap is large enough that Opal Waters will make the room feel meaningfully brighter than Chilly Blue would.
Color Details
Chilly Blue vs Opal Waters Simulated Comparison
5 simulated room previews — drag the slider on each to see Chilly Blue on one side and Opal Waters 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.