This one looks pretty solid. There are loads of them. The demos I’ve seen all showcase live feedback. https://superguigui.github.io/simple-color-picker/ https:

This one looks pretty solid. There are loads of them. The demos I’ve seen all showcase live feedback. https://superguigui.github.io/simple-color-picker/ https://superguigui.github.io/simple-color-picker/ Compare to the best I can find for WPF: https://github.com/dsafa/wpf-color-picker https://github.com/dsafa/wpf-color-picker - no live feedback, dialog only, no documented support for modern .NET. There are some commercial controls available from syncfusion and the like if you want to pay for such things. Compare to color dialog in WinForms: https://github.com/Kinnara/ModernWpf/issues/72 https://github.com/Kinnara/ModernWpf/issues/72 WinUI has a decent color picker, but there are other trade offs going with WinUI that make it inferior to the web environment (e.g. broken rendering of SVG/paths).