Blue Screen
#0000FF · RGB(0,0,255)
Click or press F for fullscreen
30-50% as a lamp · 80-100% for testing
Use Cases
Blue channel defects
Dark dots on pure blue mark dead blue subpixels — the most overlooked channel.
BSOD prank
Fullscreen blue with a hidden cursor: the classic office prank.
Detect blue decay
OLED blue material ages fastest; a dimming or cyan-shifting blue is the early sign.
Ambient lamp
Low-brightness blue sets a cool tech vibe for battle stations.
Three Steps
01
Set brightness
100% for checks, 20-40% for ambience.
02
Go fullscreen
Click the swatch or press F to fill the screen with blue.
03
Inspect
Hunt off-color dots; compare corners for dimming. Esc exits.
FAQ
Tips
- Blue OLED material has the shortest lifespan
- Blue light suppresses melatonin — avoid bright blue before bed
- Keep the prank off work machines
- Blue is only 7% of luminance — look closely