Full Screen Indigo
Experience absolute precision with our professional-grade indigo utility. Perfect for hardware validation, color matching, and creating immersive digital environments.
OLED Refresh Timer
How to use Indigo
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
Indigo (#4B0082) is a deep blue-violet that sits between blue and violet in the spectrum and is notoriously difficult for displays to render accurately. Many displays cannot distinguish pure indigo from very dark blue or dark purple. Testing with indigo reveals your monitor ability to reproduce the extreme edges of the visible color spectrum, important for printing workflows, scientific visualization, and any brand working with deep blue-purple identity colors.