Brightness 100%

Magenta Screen background

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#FF00FF
Custom Color
Opens one color window per detected screen. Drag & fullscreen each.

Screen Testing Tools

Auto Color Cycle

Rapidly cycle through colors to help fix stuck pixels. Run for 20–30 minutes for best results.

OLED Burn-in Test

Display a moving pattern to detect and reduce OLED burn-in artifacts on your screen.

Gradient Smoothness Test

Display smooth gradients to check for color banding and bit-depth issues on your monitor.

Checkerboard Pattern Test

Display pixel-level checkerboard patterns to test monitor sharpness and pixel response.

Pixel Response Time Test

Flash rapid black/white transitions to evaluate pixel response time and ghosting.

Viewing Angle Test

Display color bands to help evaluate your monitor's viewing angle consistency.

Gray Uniformity Test

Display 50% gray to reveal backlight hotspots, clouding, and brightness non-uniformity.

Color Accuracy Checker

Display reference color swatches to compare against known standards for calibration checks.

Timer Mode

Set a timer for fullscreen display. Useful for timed screen tests and ambient lighting sessions.

Multi-Monitor Detection

Detect connected displays and open fullscreen color on all screens simultaneously.

Drag each window to a different monitor, then click Go Fullscreen inside it.

About Magenta Screen

Magenta combines red and blue at full intensity, creating a vibrant, eye-catching display. For testing, magenta verifies red-blue sub-pixel balance — essential for color-critical work.\n\nMagenta doesn't exist on the visible light spectrum as a single wavelength; it's a constructed color your brain creates by mixing red and blue signals. This makes it a fascinating test for display color reproduction.

Frequently Asked Questions – Magenta Screen

Magenta doesn't correspond to a single wavelength of light. Your brain constructs it by combining red and blue signals — making it uniquely challenging for displays to reproduce accurately.

This is pure magenta at #FF00FF, also known as fuchsia in web color terminology.