This following HSLa tool is genius as unlike all similar tools I encountered, not only it gives you a brightness hierarchy (y axis), but also a hue variant (x-axis) hierarchy. I went through some tools and it's the only straight-forward tool I found that does both.
The problem with that tool is that it doesn't let you paste colors into it... As you could see immediately, It shows only one color set...
Do you know an exactly similar software that actually gives you to paste colors?
To emphasize, I don't mean to a simple HSL tool, but for an HSLa tool that offers both brightness and hue variants on the 2 axles (y=brightness, x=hue):
Note: This tool is open source. If there is a veteran JS programmer who would like to create a similar tool that allows pasting, it can be a great contribution to the Open source community.