Full Screen Slate Gray
Experience absolute precision with our professional-grade slate gray utility. Perfect for hardware validation, color matching, and creating immersive digital environments.
OLED Refresh Timer
How to use Slate Gray
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
Slate Gray (#708090) is a cool blue-tinted medium gray that tests your monitor color temperature accuracy at mid-luminance levels. If slate gray appears as a neutral gray without any detectable cool tint, your monitor white point is set too warm and all neutral grays in your work will appear warmer than on a calibrated display. Photography and design professionals use slate gray as a quick diagnostic for display color temperature drift.