Royal Regatta 1 vs Stiffkey Blue
Where Royal Regatta 1 belongs to Dulux's range, Stiffkey Blue is a Farrow & Ball 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 (8 vs 10), so they'll read as similarly Dark in most lighting conditions. Both lean cool, so they'll behave similarly in mixed or changing light conditions. With a ΔE of 12.4, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Royal Regatta 1 vs Stiffkey Blue in Real Spaces
1 real room side by side. Seeing Royal Regatta 1 and Stiffkey Blue in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Living Room
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. 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
Royal Regatta 1 vs Stiffkey Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Royal Regatta 1 on one side and Stiffkey 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 Royal Regatta 1 comparisons
See how Royal Regatta 1 stacks up against other well-photographed colors across different brands and tones.
