Full Screen Rainbow Flicker
Experience absolute precision with our professional-grade rainbow flicker utility. Perfect for hardware validation, color matching, and creating immersive digital environments.
OLED Refresh Timer
How to use Rainbow Flicker
Click the "Enter Fullscreen" button above or press F11.
Your screen will be filled with the selected color.
Check for any discoloration, backlight bleed, or dead pixels.
Press the Escape key to exit fullscreen when finished.
Did you know?
OLED screens benefit from regular color cycling. Using the timer to run a 5-minute cycle can significantly reduce the risk of temporary image retention.
Why this tool is useful
Rainbow Flicker rapidly cycles through the full visible color spectrum in a flickering pattern, producing a strobe-like effect across all hues simultaneously. It is primarily used as a creative visual effect in music performances, art installations, and photography experiments where rapid color cycling creates interesting long-exposure photographic effects. Photographers using slow shutter speeds in a darkened room with this effect produce rich layered rainbow light-painting imagery. Note: this tool contains rapid flashing and is not suitable for individuals with photosensitive epilepsy.