The Color Palette Generator is a free in-browser design tool: hEX/RGB/HSL palettes with contrast check. Everything renders on an HTML5 canvas on your own device, so your images and designs are never uploaded anywhere.
How to use the Color Palette Generator
Upload an image or start from a blank canvas, depending on the tool.
Adjust colors, layout, and other options using the live preview.
Export your finished design as a PNG — ready to use anywhere.