Product-UI palettes where one primary owns the main action and the neutrals do the rest. Picked so "confirm" is never in doubt and the interface reads friendly without going toy-like — roles and contrast included.
Mint owns the primary action and nothing else, so "confirm" is unmistakable. Neutrals stay warm-grey to keep the app friendly, not clinical.
A slate-blue dark surface with one cyan primary. The accent is loud so status and alerts read at a glance against the calm chrome.
Indigo carries every chart series; the surface stays paper-white so dense tables never feel heavy. One warm amber marks the outlier.
Pastels carry the illustrations while a deep plum keeps the copy legible. Friendly without becoming a toy.