Flat Orange sets the weight of the palette in urgency and appetite, and Flat Amber is the swatch that breaks rank: a single orange that stops the set reading as one note. Saturation averages 66 percent with Flat Orange at the top, which is loud enough that the palette will fight anything else on the page. Flat Orange and Flat Blue sit on opposite sides of the temperature line, which is the tension the palette runs on and the pair to hold apart.
Flat Orange reads as pure adrenaline: alarm, desire, the color of things that move fast.
Flat Amber a citrus-bright orange: enthusiasm, playfulness, an unmistakable call to attention.
Flat Green signals growth, balance, and permission, the color of go, of nature, of money in Western contexts.
Flat Blue an electric or cobalt blue: trust with real conviction, confident rather than passive.
Dark Label is black's softer relative, still authoritative, but with enough warmth to feel considered rather than severe.
Zero dimension, bold fills, and geometric clarity - the design language that stripped the digital world of its shadows and gradients
Explore the full Flat Design style guideIts decade on the timeline · 2010s