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Free Toolbox
Thumbnail Color Contrast Checker
Evaluate whether colors help you get clicked.
Go deeper
Run a real video through the full ViralHookAnalyzer.
Paste any YouTube, TikTok or Shorts link and get benchmarks, retention curves, and rewrites — grounded in your actual footage.
Analyze a video freeExamples
Best practices
- Pick a palette per channel and stick to it — recognition drives repeat clicks.
- Never use 3+ competing accent colors on a single thumbnail.
Frequently asked questions
Do colors really affect CTR?+
Yes — high-contrast palettes with a single accent color consistently outperform muted or multi-color designs in browse feeds.
What palettes work best in 2026?+
Warm-lit subject + cool background + one bright accent (yellow, red or lime) tests strongest across YouTube and TikTok.
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