Black Screen
#000000 · RGB(0,0,0)
Click or press F for fullscreen
30-50% as a lamp · 80-100% for testing
Use Cases
Find bright pixels & bleed
Any stuck-lit pixel or edge bleed is exposed on pure black — a must for new devices.
OLED standby
OLED black pixels switch fully off: zero power, zero aging.
Meeting privacy
Flip to fullscreen black when stepping away — faster than locking, hides content when sharing.
Check IPS glow
Corner glow shifting with viewing angle in a dark room is IPS glow — a trait, not a defect.
Three Steps
01
Set brightness
Keep 100% for bleed tests, with your usual backlight level.
02
Go fullscreen
Click the swatch or press F; black fills the screen and the cursor hides.
03
Inspect in the dark
Kill ambient light and check for bright pixels, bleed and glow. Esc exits.
FAQ
Tips
- LCD black still glows slightly — that is the backlight, not a fault
- Bleed stays fixed; IPS glow shifts with your angle
- Never judge bleed from phone photos (exposure exaggerates)
- OLED black ≈ standby power