The UX laws behind good design

A plain-English library of the UX laws that shape real interfaces — Hick's Law, Fitts's Law, the Doherty Threshold and more. What each one means, and how to actually apply it.

  • 60-30-10 Rule
  • 8-pt Spacing Scale
  • Accessible contrast
  • Aesthetic-Usability Effect
  • Alignment Principle
  • Calibrated Trust
  • Density Matches Context
  • Design every state
  • Doherty Threshold
  • Fitts's Law
  • Funnel Triage
  • Hick's Law
  • Information Architecture
  • Interruption Cost
  • Law of Proximity
  • Miller's Law
  • Minimum tap target
  • Modular Type Scale
  • Nielsen's 5-User Rule
  • Single-Variable Testing
  • Specificity Principle
  • Statistical Power
  • Time-to-Value
  • Token Layering
  • Touch-Target Sizing
  • Visual hierarchy
  • WCAG 1.4.3 Contrast
  • WCAG 2.5.5 Target Size
  • WCAG baselines
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