If you’ve ever scrolled Color Hunt or Coolors, found a “perfect” palette, and then immediately asked, “Okay… what the hell am I supposed to do with these colors?”, this video is for you. I break down a super practical, repeatable UI color system that actually works in real product design (not poster design). UI needs hierarchy: backgrounds, text, buttons, icons, navigation—everything should guide the user to one main goal. Too many colors and it becomes messy; no color and it becomes dull. The balance is simple: one primary color for main actions, neutrals (white/black/grays) for basically everything else. Then I cover the real problems you hit in UI: hover/pressed states (tints and shades), semantic colors like error/success/warning, and the tricky one—adding expression without stealing attention from your primary action. For that, I use supporting colors (not “secondary button colors”) that complement the primary. I show two easy ways to pick them: a color wheel harmony tool (like Canva’s) or Coolors where you lock your primary and generate options. If you’re starting from scratch with no brand color, those “fancy” palettes are still gold—just use them correctly: pick one vibrant primary, choose 1–2 supporting colors, and keep the rest neutral.