Turn your entire screen pure cyan with one click. Cyan is green and blue at full power with red switched off, which makes it good at exposing stuck red sub-pixels, and a strong cool light for teal-and-orange looks.
F for fullscreen, Esc to exit
Red is off across the whole field, so a red sub-pixel stuck on shows as a pale or white dot against the cyan.
Cyan on one side and orange on the other is the classic film look. Two screens make a small version of it.
A cyan field makes a crisp cool rim or background light for product and portrait shots.
Cyan is an even mix of two channels. If it drifts toward blue or toward green, one of them is stronger on this panel or in this profile.
Cyan lights green and blue and leaves every red sub-pixel off. Add a red sub-pixel that is stuck on and that pixel becomes red plus green plus blue, which is white. So a stuck red sub-pixel shows up as a small pale dot here, where it can be hard to find on white.
Written by Piero Nanni. If a panel of yours behaves differently, tell me and I will correct it. Updated .
The same #00FFFF field as a PNG, for a wallpaper, a slide or video background, or a TV that plays images from a USB stick. Made in your browser; nothing is uploaded.
Any other colour: use the picker on the homepage.