Dark Label sets the weight of the palette in authority and restraint, and System Blue is the swatch that breaks rank: a single blue that stops the set reading as one note. Dark Label to Background spans 86 points of lightness, so the palette can carry its own hierarchy without reaching for a second one. Alert Red and System Blue sit on opposite sides of the temperature line, which is the tension the palette runs on and the pair to hold apart.
Dark Label is black's softer relative, still authoritative, but with enough warmth to feel considered rather than severe.
System Blue an electric or cobalt blue: trust with real conviction, confident rather than passive.
Success Green signals growth, balance, and permission, the color of go, of nature, of money in Western contexts.
Alert Red reads as pure adrenaline: alarm, desire, the color of things that move fast.
Background a pale lavender-blue, introspection turned gentle and dreamlike.
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