Purple — #800080

Purple full screen at hex #800080. A darker mixed tone, useful for judging how evenly your panel renders mid-brightness colours across its area.

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Same job, different channel

White Screen#FFFFFFFree full screen white display. Use it to clean your monitor, spot dead pixels, or light your face on a video call. No install, works instantly.
Black Screen#000000Free full screen black display. Check your monitor for backlight bleed, light leaks and stuck pixels, or save power on an OLED panel. Runs instantly.
Red Screen#FF0000Free full screen red display for testing the red subpixel channel on your monitor, TV or phone. Useful for spotting dead pixels and colour faults.
Green Screen#00FF00Free full screen green display for checking the green subpixel channel, testing chroma key setups, or hunting for dead pixels on any display.

Different job

All 15 Colour Screens

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