Dock Blue vs RAL 790-3
Where Dock Blue belongs to Little Greene's range, RAL 790-3 is a RAL Effect color. Hue-wise, Dock Blue belongs to the blue family and RAL 790-3 to the blue-grey family. They have nearly identical light reflectance values (4 vs 4), so they'll read as similarly Dark in most lighting conditions. The ΔE 5.7 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Dock Blue vs RAL 790-3 in Real Spaces
2 real rooms side by side. Dock Blue and RAL 790-3 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.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. The distinction reads clearly at room scale, making the choice between them concrete.
Color Details
Dock Blue vs RAL 790-3 Simulated Comparison
5 simulated room previews — drag the slider on each to see Dock Blue on one side and RAL 790-3 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 Dock Blue comparisons
See how Dock Blue stacks up against other well-photographed colors across different brands and tones.
