Cool water, warm beacon. The palette turns to dunes, tide, and harbour navy — and terracotta stays as the one warm thing on the coast: the guiding light. A nautical-chart grid gives the product the feel of careful navigation, not surveillance.
Draft v0.2 — for your reviewCool base, single warm accent. WCAG holds by rule: body text is Ink-navy on Sail (≈13:1, AAA); on harbour navy, text is Sail/Mist (AAA). Terracotta & tide are accents/large type (AA on sail). Never set terracotta text on navy — use apricot or gold there.
The "blueprint" register — for dark UI surfaces, the deck's data slides, and section breaks. Harbour navy with a fine chart grid, depth soundings, a bearing line, and the mark drawn in chart-line strokes. It says: careful navigation.
Same lighthouse, maritime dress: navy structure, terracotta bands, warm beam. Shown on light and on the chart-navy.
How it lands on the product. Once you confirm maritime, I'll retrofit the full dashboard (heat map tiles → seafoam/tide/beacon bands, chart-grid background option), then carry it into the SMS flow, the training diff, and the deck.