Hague Blue vs RAL 620-5
Hague Blue (Farrow & Ball) and RAL 620-5 (RAL Effect) come from different manufacturers. Both sit in the blue family, which is useful context if you're narrowing within a single hue direction. The 3-point LRV gap — 7 for Hague Blue vs 4 for RAL 620-5 — means Hague Blue will open up a space more effectively. A ΔE of 14.8 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Hague Blue vs RAL 620-5 in Real Spaces
2 real rooms side by side. Seeing Hague Blue and RAL 620-5 in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
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. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.
House
A full exterior is the most demanding test for a paint color — scale and outdoor light both amplify differences that seem small on a swatch. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.
Color Details
Hague Blue vs RAL 620-5 Simulated Comparison
5 simulated room previews — drag the slider on each to see Hague Blue on one side and RAL 620-5 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 Hague Blue comparisons
See how Hague Blue stacks up against other well-photographed colors across different brands and tones.
