Vast Lake vs Pastel blue
Where Vast Lake belongs to Dulux's range, Pastel blue is a RAL Classic color. Both sit in the blue family, which is useful context if you're narrowing within a single hue direction. They have nearly identical light reflectance values (31 vs 29), so they'll read as similarly Medium in most lighting conditions. The ΔE 8.4 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Vast Lake vs Pastel blue in Real Spaces
1 real room side by side. Vast Lake 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.
Front Door
A front door is a focal point — small color differences read clearly at this concentrated scale. Side by side like this, the difference is easy to read — which is exactly why seeing them in a real space is more useful than comparing chips.
Color Details
Vast Lake vs Pastel blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Vast Lake 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 Vast Lake comparisons
See how Vast Lake stacks up against other well-photographed colors across different brands and tones.
