Flat Design / Vector Minimalism vs Mid-Century Modern
フラットデザイン / ベクターミニマリズム / ミッドセンチュリー・モダン
Flat Design / Vector Minimalism comes from UI Expression and Mid-Century Modern from Retro. 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.
Mid-Century Modern
Adds hand-felt curves and warmth to rational geometry.
| Flat Design / Vector Minimalism | Mid-Century Modern | |
|---|---|---|
| Era | 2010s– | 1940s–1960s |
| Family | UI Expression | Retro |
| Kind | Style | Style |
| Cues | Uniform planes / Simple shapes / Few shadows / Clear color | Organic shapes / Calm warm colors / Succinct illustration / Diagonal movement |
| Best used for | Light, understandable explanation · Large sets of consistent figures | Balancing friendliness with intelligence · Building contexts of living, furniture and culture |
| Type | A rounded sans-serif | A rounded sans-serif |
| Composition | Simple silhouettes and clear hierarchy | Asymmetric yet stable balance |
| Material | Three to five colors; shadows only when they mean something | Mustard, teal, textures of wood and paper |
| Caution | Figures easily become generic. Define your own ratios, lines and color rules. | Don't pile up retro props. Fit the forms to today's information structure. |



