Think of blue and yellow the way you’d think of the sea and the early light on it. Seaside Blue is the deep, settled water — cool, calm, and easy to live with — while Morning Butter is the warm glow that keeps the whole thing from feeling cold. They sit far enough apart on the wheel to stay interesting, but they share a softness that makes them read as friendly rather than loud.
The neutrals do the patient work here. Sea Salt White opens up the space and lets the blue breathe, and Driftwood Gray adds a weathered, sandy middle tone so the jump from blue to yellow never feels abrupt. A little Slate Navy at the edges acts like the dark line where the horizon meets the sky — small, but it sharpens everything around it.
For a slightly more 2026 feel, lean the yellow soft and chalky rather than bright. Use the blue as your dominant color, the butter yellow as a measured accent, and let the warm white and gray carry the rest. The result is fresh and coastal without tipping into nautical cliche.