Frame Rate Test

Red Screen

Display a pure red screen for testing, calibration, photography lighting, or creative projects. Click fullscreen for the best experience.

Red

Red Screen Variations

Download Red Screen

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Customization

How to Use the Red Screen?

  1. 1. Click the "Enter Fullscreen" button for the best experience.
  2. 2. Click anywhere on the screen or use the arrow buttons to cycle through different red variations.
  3. 3. Use the pure red screen for:
    • • Testing the red color channel of your display.
    • Dead pixel and stuck pixel detection.
    • • Photography lighting effects.
    • • Night vision preservation (dark red).
  4. 4. Keyboard shortcuts: 'F' for fullscreen, arrow keys to switch colors, 'R' to reset, 'D' to download, 'G' to toggle grid.

About Red Screen Tool

A red screen is essential for testing your display's red color channel, detecting pixel defects, and creative applications. Red light is also used to preserve night vision in low-light environments. Our tool provides multiple red variations from bright crimson to deep dark red for various testing and creative needs. For comprehensive display testing, also try our Screen Bleeding Test and Refresh Rate Tester.

Common Uses for a Red Screen

Display Testing

Practical Uses

  • • Night vision preservation.
  • • Photography lighting.
  • • Mood lighting.
  • • Creative backgrounds.

Red Screen Variations Explained

Pure Red (#FF0000)

Maximum red intensity with no green or blue. Perfect for testing the red channel of your display.

Crimson (#DC143C)

A rich, deep red with slight blue undertones. Popular for creative and artistic applications.

Dark Red (#8B0000)

A deep, dark red ideal for night vision preservation and low-light environments.

Light Coral (#F08080)

A softer, lighter red that's easier on the eyes for extended viewing.

Tips for Using Red Screen

  1. For Night Vision: Use dark red (#8B0000) in astronomy or night photography to preserve your eyes' dark adaptation.
  2. For Dead Pixel Testing: Carefully scan the entire display for any pixels that appear differently colored. For comprehensive testing, use our Dead Pixel Tester or fix stuck pixels with our Dead Pixel Fixer.
  3. For Photography Lighting: Use as a colored light source for portraits or creative effects. Adjust brightness for desired intensity.
  4. For Color Calibration: Compare different red variations to understand your monitor's red channel accuracy.
  5. For Mood Lighting: Use in fullscreen mode with dimmed brightness for ambient room lighting. Also check your screen resolution.

Frequently Asked Questions

Red light doesn't trigger the eye's adaptation to bright light, helping preserve night vision. Use dark red for best results in astronomy or night photography.
Enter fullscreen mode and examine the screen for any pixels that appear black (dead) or a different color (stuck). Red is particularly good at revealing blue or green stuck pixels. For a more thorough test, use our dedicated Dead Pixel Tester.
Yes! A red screen provides excellent colored lighting for portraits, product photography, or creating dramatic effects. Adjust brightness for desired intensity.
Yes! Select your desired resolution from the dropdown menu or enter custom dimensions, then click the 'Download' button. The screen will be saved as a PNG image.
Use 'F' to toggle fullscreen, left/right arrow keys to cycle through colors, 'R' to reset, 'D' to download, 'G' to toggle grid. Press 'Esc' to exit fullscreen mode.
Yes! Use the "Upload your own background" feature to set any image as your screen background. Supported formats include JPG, PNG, and GIF.
Toggle the grid using the switch in the customization panel or press 'G' on your keyboard. The grid provides a 40x40 pixel overlay perfect for alignment and measurement purposes.