A trust-based system designed for high readability and content-first networking.
Real data. Real impact.
Emerging
Developers
Source: https://github.com/LinkedIn/professional-system?ref=explainxPer week
Excellent
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name LinkedIn Professional System
version 4.0.0
colors primary: "#0a66c2" # LinkedIn Blue (Action/Primary Brand) secondary: "#004182" # Deep Blue (Hover/Active) background: "#f3f2ef" # LinkedIn Off-White (The "Gutter" color) surface: "#ffffff" # Pure White (Feed Cards/Modules) text-main: "#000000e6" # High-emphasis Black (90% opacity) text-muted: "#00000099" # Low-emphasis Grey (60% opacity) border: "#ebebeb" # Subtle Card Outlines
typography fontFamily: "-apple-system, system-ui, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif" baseSize: "14px" lineHeight: 1.428
rounded card: "8px" # LinkedIn's signature soft corner button: "100px" # Pill-shaped networking buttons input: "4px"
A trust-based system designed for high readability and content-first networking. The aesthetic is defined by white "islands" (cards) floating on a neutral grey sea, keeping the focus entirely on professional identity and feed data.
LinkedIn Blue (#0a66c2): Used for the brand identity, verified badges, and primary calls-to-action like "Follow" or "Post."
LinkedIn Grey (#f3f2ef): This background color is crucial—it provides the necessary contrast to make white content cards feel organized and separated.
Opacity-based Text: Instead of hex-greys, LinkedIn uses black with varying alpha channels (e.g., #000000e6)
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