Blue Square vs Pastel blue
Blue Square (Behr) and Pastel blue (RAL Classic) 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 9-point LRV gap — 29 for Pastel blue vs 20 for Blue Square — means Pastel blue will open up a space more effectively. ΔE 7.1 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Blue Square vs Pastel blue in Real Spaces
1 real room side by side. Blue Square and Pastel blue 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.
Kitchen
Kitchens often have the harshest, most revealing light in the house — under-cabinet LEDs and overhead fixtures that strip away subtlety. Pastel blue returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Blue Square vs Pastel blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Blue Square on one side and Pastel 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 Blue Square comparisons
See how Blue Square stacks up against other well-photographed colors across different brands and tones.










































