Thunderegg vs Grey Blue
Thunderegg (Cloverdale Paint) and Grey Blue (RAL Classic) come from different manufacturers. Thunderegg reads as greige-grey, while Grey Blue reads as blue-grey — two distinct hue families, not close cousins. The 11-point LRV gap — 18 for Thunderegg vs 7 for Grey Blue — means Thunderegg will open up a space more effectively. A ΔE of 24.1 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Thunderegg vs Grey Blue in Real Spaces
1 real room side by side. Seeing Thunderegg and Grey Blue 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. Thunderegg returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Thunderegg vs Grey Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Thunderegg on one side and Grey 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 Thunderegg comparisons
See how Thunderegg stacks up against other well-photographed colors across different brands and tones.










































