Purple screen
Click the panel to fill your screen with purple. On a screen, purple is red and blue light without green.
Turn off after
What people use it for
Gaming and stream setup
A purple wash behind your desk that matches RGB lighting.
Mood light
Indigo at low brightness makes a calm, dim light for the evening.
Check red and blue subpixels
Purple lights red and blue only; a missing one leaves a red or blue dot.
Keyboard shortcuts
- F
- Full screen
- Esc
- Exit full screen
- ← →
- Previous / next color
- ↑ ↓
- Brighter / dimmer
Every color
More screen tools
Dead pixel test
Five colors, one at a time, to find dead and stuck pixels.
Refresh rate test
See your screen’s real Hz and spot stutter.
Screen test
Gradients, black level, uniformity, gamma and sharpness.
Test pattern
Color bars and a test card at your native resolution.
Zoom light
A soft, warm light for video calls from a spare screen.
Background images
Plain color PNGs for desktops, phones and 4K.
Questions
Which purple is it?
Vivid purple, #8000FF. Violet and lavender are lighter; indigo is darker.