Peaceful River vs RAL 640-2
Peaceful River (Behr) and RAL 640-2 (RAL Effect) come from different manufacturers. These are both blues, so the question isn't which hue to choose — it's where within blue to land. The 13-point LRV gap — 26 for Peaceful River vs 13 for RAL 640-2 — means Peaceful River will open up a space more effectively. A ΔE of 10.5 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Peaceful River vs RAL 640-2 in Real Spaces
3 real rooms side by side. Seeing Peaceful River and RAL 640-2 in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Bedroom
Bedrooms are typically lit with warmer, lower light than the rest of the house — a condition that flatters warm tones and deepens cool ones. Peaceful River returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Kitchen
Kitchens often have the harshest, most revealing light in the house — under-cabinet LEDs and overhead fixtures that strip away subtlety. Peaceful River returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Bathroom
Small bathrooms intensify color. A shade that seems quiet in a larger room can feel immersive when you're surrounded by it on four walls. Peaceful River returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Peaceful River vs RAL 640-2 Simulated Comparison
5 simulated room previews — drag the slider on each to see Peaceful River on one side and RAL 640-2 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 Peaceful River comparisons
See how Peaceful River stacks up against other well-photographed colors across different brands and tones.













































