Festoon Aqua vs River Rouge

Both are Sherwin-Williams colors. Hue-wise, Festoon Aqua belongs to the blue family and River Rouge to the grey family. At LRV 46 vs 12, Festoon Aqua will read as the brighter of the two — a 35-point gap that matters most in north-facing or low-light rooms. The tonal difference — Festoon Aqua's cool character against River Rouge's warm — becomes most visible against white trim or in morning light. At ΔE 40.0, 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.