Category · 18 tools
Solid Color Screens
Full-screen solid colors for checking a display, cleaning it, or lighting a room or a call.
Test colors
Single channels and their mixes, for finding faulty subpixels.
- Black Screen#000000Check for backlight bleed, light leaks, and stuck pixels.
- Red Screen#FF0000Tests the red subpixel channel for dead pixels and color faults.
- Green Screen#00FF00Tests the green subpixel channel. Also usable for chroma key.
- Blue Screen#0000FFTests the blue subpixel channel for dead pixels and color faults.
- Yellow Screen#FFFF00Combines red and green subpixels. A quick check for faulty pixels and uneven tint.
- Cyan Screen#00FFFFDrives green and blue subpixels together, with red off.
- Magenta Screen#FF00FFLights red and blue subpixels at once. A standard step in a pixel check.
Adjustable and patterns
For uniformity checks and panel dirt.
- Gray Screen#808080 · adjustableAdjustable gray field that reveals uneven backlighting and tint drift.
- Brightness TestTen brightness levels side by side, or one level full screen.
- Checkerboard Screen#000000 / #FFFFFFBlack and white squares that make dead pixels and panel dirt stand out.
- Rainbow ScreenA still gradient through every hue, for a multi-hue reference or backdrop.
Warm, soft and lighting colors
Warm tones, pastels, and whites for lighting a room, a call, or a photo.
- Orange Screen#FFA500Warm background light for photos and video, or a mid-tone tint reference.
- Pink Screen#FFC0CBSoft colored backdrop for photos and video calls, or a mid-tone reference.
- Purple Screen#800080Mixes red and blue subpixels. Checks for stuck green pixels and uneven backlighting.
- Warm White Screen#FFB86DScreenTail's warm-white preset (#FFB86D) for a warm backdrop or light on video calls.
- Cool White Screen#FFFFFFA white display using #FFFFFF, the same browser color as White Screen.
- Amber Screen#FFBF00ScreenTail's amber preset for a warm golden backdrop or accent light.
Guides for these tools
What a result means, and what to do next.
- ExplainerScreen Flicker and PWMWhy some screens flicker at low brightness, what PWM and DC dimming are, what "flicker-free" means, and how to check your own screen with a phone camera.
- ExplainerEye Strain: Settings That HelpScreen brightness, glare, distance, position, text size and breaks: what the American Optometric Association and other eye-care bodies recommend for screen use.