Why use yellow instead of white?
Yellow stresses red+green channels differently than white, which activates all three RGB channels.
Yellow screen
Yellow combines red and green channels — useful for warm lighting and detecting defects visible on mixed-channel colors.
Click to enter fullscreen
Cycles white, black, red, green, and blue every 5 seconds. Best in fullscreen. All display tests →
Resolution preset
How to Use
- Visit the yellow screen tool.
- Activate fullscreen on the preview.
- Inspect for dots, banding, or tint shifts.
Why Use a Yellow Screen?
Warm fill light
Yellow provides soft, warm illumination for video calls and photography.
Dual-channel test
Yellow activates red and green subpixels together — catches issues single-channel tests miss.
Banding detection
Gradient-free yellow helps reveal color banding on some panels.
Yellow for mixed-channel testing
Because yellow requires both red and green at full intensity, a faulty green or red subpixel may create visible artifacts.
Warm white points on many monitors lean yellow — compare yellow fullscreen to white to assess color temperature.
Explore Other Screen Tools
White screen for display testing
Open fullscreen white background
Black screen for display testing
Open fullscreen black background
Red screen for display testing
Open fullscreen red background
Green screen for display testing
Open fullscreen green background
Blue screen for display testing
Open fullscreen blue background
Orange screen for display testing
Open fullscreen orange background
Pink screen for display testing
Open fullscreen pink background
Purple screen for display testing
Open fullscreen purple background
Grey screen for display testing
Open fullscreen grey background
FAQs
Can yellow help with Zoom lighting?
Yes — yellow can soften skin tones compared to cool white fill light.
How do I save a yellow background?
Use resolution presets or custom dimensions, then Download.
Is yellow harder on the eyes?
At high brightness it can feel intense — lower brightness for comfort.