Flat Design / Vector Minimalism vs Material You / Material 3

フラットデザイン / ベクターミニマリズム / マテリアル・ユー/マテリアル3

Flat Design / Vector Minimalism comes from UI Expression and Material You / Material 3 from Google UI. Both are read here as style. They are reached for with some of the same intent, which is where they get confused.

Flat Design / Vector Minimalism

Reduces information to plain planes and color, portable across screens and media.

Material You / Material 3

Derives a color system from the user's wallpaper and choices, adapting shape, color, motion and components to the individual.

Flat Design / Vector MinimalismMaterial You / Material 3
Era2010s–2021–
FamilyUI ExpressionGoogle UI
KindStyleStyle
CuesUniform planes / Simple shapes / Few shadows / Clear colorDynamic color / Large corner radii / Personalized themes / Adaptive components
Best used forLight, understandable explanation · Large sets of consistent figuresAndroid apps that honor the user's color choice and keep the palette intact from device to device · Personal tools where choosing the color is what the user owns, and one system stretched across several brands
TypeA rounded sans-serifAssign text colors by role and keep raw values out of screen code.
CompositionSimple silhouettes and clear hierarchyKeep corner radii as a scale by role and choose by component size.
MaterialThree to five colors; shadows only when they mean somethingVerify contrast in both light and dark for every wallpaper derived palette.
CautionFigures easily become generic. Define your own ratios, lines and color rules.Pale tints and big radii are not the system, so design color roles, states, accessibility and user driven variation, and keep a brand hue so the app stays recognizable.

IndexStyle