Approach · 2010s–present · International interface design
Flat design
Clarify hierarchy without simulated materials.
What is Flat design?
Flat design reduces decorative dimensional effects in favour of typography, shape, colour, spacing, and iconography. It is an interface approach rather than the invention of flat graphic form, which has much older precedents. Microsoft’s Metro language and Apple’s iOS 7 made different versions highly visible in the early 2010s. Good flat design still distinguishes interactive controls from content. Removing shadows is not a sufficient design strategy; the hierarchy and state system must become more explicit elsewhere.
The story
High-resolution screens, responsive layouts, and mature user familiarity with digital conventions encouraged a move away from elaborate material simulation. The shift was not absolute: iOS 7 also used translucency and layers. Subsequent systems reintroduced selective depth while retaining simplified surfaces.
How do you recognise Flat design?
- Solid colour fields
- Reduced texture and ornamental gradients
- Typography-led hierarchy
- Simple icons with consistent stroke or fill logic
Colour, type, layout and material
- #FFFFFF
- #151515
- #1976D2
- #F2C94C
Typography. Use a coherent sans-serif hierarchy with adequate weight contrast. Avoid ultra-light type for small text and differentiate headings through scale, spacing, and content structure.
Composition. Use aligned blocks, a flexible grid, generous separation between groups, and one dominant action. Distinguish controls with shape, labels, and state treatment.
Materials. Solid fills, vector icons, CSS shapes, and selective photography. Prefer crisp edges and purposeful colour roles over decorative textures or simulated lighting.
Why does Flat design work?
Reduced surface detail may help scanning when hierarchy is strong. Flatness alone does not ensure ease of use; ambiguous buttons can increase uncertainty. Clear labels, boundaries, and feedback matter more than whether an interface uses a shadow.
The principle. Spend visual complexity on the information. When material effects disappear, spacing, alignment, type scale, and state differences must do more work. The creative challenge is to achieve both distinctive character and unmistakable interaction without unnecessary decoration.
Where it was used
iOS 7 interface, Apple, 2013. The redesign simplified typography and surface styling while using motion, translucency, and functional layers. It demonstrates why flat design need not mean an absence of spatial structure.
- Cross-device product interfaces
- Information graphics and diagrams
- Clear service and utility applications
What to avoid
- Colour-only interaction states
- Making buttons indistinguishable from labels
- Equating simplicity with deleting useful information
Try it: a short exercise
Redesign a textured interface in black and white first. Prove that grouping, state, and priority remain understandable. Add one colour only after the hierarchy works, assigning it a consistent role across every screen.
How do you prompt for Flat design?
These prompts ask for an original piece informed by the style, not a copy of any work. Replace the words in square brackets.
For an image or visual design
Create a flat-design [FORMAT] explaining [SUBJECT] to [AUDIENCE]. Use solid shapes, a precise grid, a readable type hierarchy, and three functional colour roles. Prioritize one clear message and a subject-specific visual metaphor. Avoid drop shadows, bevels, ornamental gradients, and generic floating app tiles. Make the composition distinctive through proportion, cropping, and the relationship between information and illustration. Create an original composition, not a replica of a named artwork or brand. Explain three decisions that connect the result to this brief. Use supplied wording accurately; leave space for manually typeset text if text rendering is unreliable.
For an interface
Build a flat responsive interface for [SUBJECT] and [AUDIENCE]. Establish explicit type, spacing, colour, and icon tokens. Give buttons visible boundaries or fills; make links distinguishable in text. Provide distinct hover, focus, active, selected, and disabled states. Use colour for semantic meaning consistently, with text or shape reinforcement. Keep navigation understandable on touch devices where hover does not exist. Use semantic HTML, responsive layouts, visible keyboard focus, labelled controls, and accessible contrast. Include loading, empty, error, and success states where relevant. Respect reduced-motion preferences. Use realistic supplied content, not generic placeholder marketing. Explain how the visual choices support the user’s task. Deliverable: [FORMAT].
Lineage
Draws on: Swiss / International Typographic Style, The New Typography, Minimalism.
Influenced: Material Design, Glassmorphism, Neumorphism, Humanist digital design, Claymorphism, Metro design language, Material You and Expressive, Dark mode interfaces.