Royal Regatta 6 vs Thimble Case

Both are Dulux colors. Royal Regatta 6 reads as blue, while Thimble Case reads as greige-grey — two distinct hue families, not close cousins. At LRV 68 vs 50, Thimble Case will read as the brighter of the two — a 18-point gap that matters most in north-facing or low-light rooms. The tonal difference — Royal Regatta 6's cool character against Thimble Case's warm — becomes most visible against white trim or in morning light. At ΔE 22.5, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.