Color screens

Red Screen

Display a solid red screen online in fullscreen. Compare visible pixel behavior or choose a custom color with the picker or HEX input.

Before you open: Use a comfortable device brightness. Keep static patterns brief, especially on OLED or plasma displays. This page does not prevent or repair burn-in. Stop if the light feels uncomfortable.

Red screen#FF0000 · RGB 255, 0, 0

Choose a color or enter a HEX value. Changes stay in this browser.

Red screen#FF0000

Hide controls for a clean field. Move, tap, or press a key to show them. ← → change color.

How to use the red screen

  1. Set your device to a comfortable brightness and choose Open fullscreen. Move the window to the monitor you want to view first.
  2. Use Hide controls for an uninterrupted field. Move the pointer, tap, or press a key to reveal the controls again. Use the named color buttons or arrow keys to switch colors.
  3. Select Close screen or press Escape to leave. If your browser refuses fullscreen, the field stays usable inside the window; browser bars may remain visible.

Choose your own shade with Custom color, or enter a three- or six-digit HEX value and select Apply color. The preview and fullscreen field update together. Switch back to a named preset using the fullscreen color buttons.

A solid red background

This red field uses the standard RGB value 255, 0, 0. Use it as a plain display background, a visual reference, or an uninterrupted color field. The browser, operating-system profile, display mode, and panel affect the red you actually see. The field is not a measured color reference.

Compare a suspect point across colors

A point that stays dark or changes differently from its surroundings on red may deserve a comparison on green, blue, white, and black. One field cannot distinguish every dead pixel, stuck pixel, subpixel issue, or surface mark. Use the complete dead pixel test to observe a fixed position without rapidly flashing between colors.

Channel inspection needs more than one shade

This page shows one red value, not a saturation ramp. To compare channel steps or clipping, open the RGB test. Keep conditions consistent between observations and check whether anything unusual is visible in ordinary content. A red screen cannot establish gamut coverage, Delta E, or calibrated color accuracy.

What this color field cannot measure

The page requests #FF0000 (RGB 255, 0, 0). Browser color handling, device settings, ambient light, and the panel affect what you see. A uniform field is a visual aid; it cannot measure color accuracy, luminance, contrast ratio, gamut coverage, or physical response time. Screenshots cannot document a physical pixel defect; a photo can record a location, but its exposure is not a measurement.

On phones and tablets, fullscreen availability varies by browser and device. The window fallback remains usable, but cannot remove system bars or cover an area reserved by the operating system. Use the larger preview for a plain background, and a focused test for a specific display question.

Frequently asked questions

What color is this fullscreen red screen?

The default is #FF0000, or RGB 255, 0, 0. The physical appearance still depends on your display and color management. Custom colors display their own HEX and RGB values.

Does a red screen fix stuck pixels?

No. This is a static visual field. It does not run a pixel-fixing loop or repair hardware.

Can I choose a custom color instead of red?

Yes. Use Custom color to choose a shade, or enter a three- or six-digit HEX value and select Apply color. The preview and fullscreen field use the selected color. The named preset remains available in the fullscreen controls.