Blue Screen
Click the button below to open a fullscreen blue screen. Press Esc to exit.
Shortcuts: F or Space — fullscreen · W white · K black · R red · G green · B blue
Uses for a blue screen
Dead pixel testing
Reveals stuck red or green subpixels — the most common type of stuck pixel defect.
Chroma key backdrop
Blue screen (bluescreen) is the classic background for video compositing and special effects work.
Calm ambient lighting
Cool blue light creates a calm, focused environment for work or study sessions.
Photography & video
Use as a background in product photography or portrait setups requiring a cool-toned fill light.
Frequently asked questions
- What stuck pixels does a blue screen reveal?
- A blue screen reveals stuck red or green subpixels. Any pixel that cannot display blue will show up as a red or green dot against the blue background. Blue is the most common channel to develop stuck pixels over time.
- Can I use this as a bluescreen for chroma key?
- Yes. A fullscreen blue background works as a chroma key backdrop for small-scale video production. For best results, the subject should not wear blue clothing, and the screen should be the only light source in the frame.