I'm making a 3D color picker that lets you drag to change the color. It is still a work in progress, but it is finally to the point I find it useful for making color palettes! I'd love to hear any feedback about how to make it better: https://observablehq.com/d/ef1d08dd03704d74

Awesome, I love the smooth transitions between spaces

very cool but I do find it hard to move the colors to a desired place in the space. Sometimes the color varies on the light/dark axis when I am trying to move the color in the "hue" dimension. I think extracting sliders for the core dimensions when having a color selected might be easier to control than the lossy projection to the screen space.

@Tom Larkworthy yes, the reason that is happening is how chroma.js handles clamping out of gamut colors. I definitely agree, having precise color sliders is a great idea. I wonder if I could make a tab system for the right to show different tools side by side with the 3D color space.