Neumorphism sits between flat design and skeuomorphism: instead of drawing outlines, it uses a pair of shadows — one dark, one light — to make elements appear extruded from the background itself.

One light source, always

The whole illusion depends on a consistent light source. Pick a corner (typically top-left), and every raised element casts its dark shadow away from it. Mix directions and the brain immediately reads the surface as broken.

Accessibility is the hard part

Soft UI lives in a narrow contrast band, which is exactly where accessibility problems start. Text still needs 4.5:1 contrast against the surface, and interactive elements need more than a subtle shadow shift to communicate state.

If a control's only affordance is a 2% luminance change, it does not have an affordance.

Where it works

Neumorphism shines on calm, low-density surfaces: settings panels, music players, dashboards with a handful of controls. It struggles on content-heavy pages. Use it as seasoning, not the meal.