Lulworth Blue vs RAL 580-1
Lulworth Blue (Farrow & Ball) and RAL 580-1 (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 16-point LRV gap — 61 for RAL 580-1 vs 45 for Lulworth Blue — means RAL 580-1 will open up a space more effectively. A ΔE of 10.2 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.
Lulworth Blue vs RAL 580-1 in Real Spaces
2 real rooms side by side. Seeing Lulworth Blue and RAL 580-1 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. RAL 580-1 returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
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. RAL 580-1 returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Lulworth Blue vs RAL 580-1 Simulated Comparison
5 simulated room previews — drag the slider on each to see Lulworth Blue on one side and RAL 580-1 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 Lulworth Blue comparisons
See how Lulworth Blue stacks up against other well-photographed colors across different brands and tones.











































