Color Tools
Check your color work with the Value Checker, the Color Blindness Simulator, and Extract a Palette. Test contrast, see how others see your colors, and pull a palette from a photo.
Value Checker
Drag your own photo onto the image below (or click to upload). This measures each pixel's actual brightness the way your eye sees it, then rebuilds it in gray — so you can check if it still reads once the color is gone.
Extract a Palette
Every photo already has a color story. Drag your own photo onto the image below (or click to upload) and this pulls out its dominant colors live, right in your browser.
Color Blindness Simulator
There are many types of color blindness. Drag your own photo onto the image below (or click to upload) and preview a simulation of the way a person with protanopia, deuteranopia, or tritanopia would see it.