Color Picker
Choose any color and go fullscreen.
Share a color
Every color you pick updates the URL (e.g. /colors#ff5733). Copy the URL to share that exact color with someone — they'll open the same screen when they visit.
Uses for custom color screens
Color proofing
Check how a brand color or paint shade actually looks on a real screen at full size.
Ambient lighting
Set a warm amber (#ff8c00) or soft teal (#008080) for mood lighting in a room.
Photography gel simulation
Use a colored screen as a soft fill light with the exact hue you need.
Dead pixel test
Any custom solid color can reveal stuck subpixels that are a different hue.