Full Screen Red Display
Turn your entire screen red with one click. A red screen is perfect for creating dramatic lighting effects, testing your display for color accuracy, preserving night vision, and setting a warm ambient mood.
F for fullscreen, Esc to exit
What a red field is for
Night Vision Preservation
Red light has the least impact on your night-adapted vision. Use a red screen when you need to see your display in the dark without ruining your ability to see in low light.
Dead Pixel Testing
Stuck pixels on the red subpixel are only visible on a red screen. Cycle through red, green, and blue to test all three subpixels individually.
Photography & Video Lighting
Create dramatic red lighting for portrait photography, product shots, or video scenes. Your monitor acts as a large, controllable red light panel.
Ambient Mood Lighting
Set a warm, cozy atmosphere for movie nights, gaming sessions, or relaxation. Red light is known to promote a calming environment.
Questions
Other colors
Any other colour: use the picker on the homepage.
Screen tools
- White Screen Test Check a white field for dust, dead pixels, uniformity, and tint.
- Dead Pixel Test Cycle white, black, red, green, and blue to find faulty pixels.
- Stuck Pixel Fixer Rapidly flash colors over a stuck pixel to try to un-stick it.
- Backlight Bleed Test Spot light leaking around the edges of an LCD panel on black.
- Screen Burn-In Test Reveal retained images and uneven wear on OLED and plasma panels.
- Monitor Test Full sweep: pixels, bleed, uniformity, and color channels.
- Light Box Use the screen as a tracing panel or soft photography light.