Recently Ai added Recent Color sections (the request: http://illustrator.uservoice.com/forums/333657/suggestions/44772598) to Swatches and Color panels (with an ability to disable them — thanks!)
Unfortunately, we have no control over the section. Once a color gets added, it stays until Prefs reset.

Sometimes I misclick and create almost identical colors and have to hover later to understand which one is correct... or want to remove some chips to keep some older ones... or wipe everything to be less distracted, because I switch projects.

I’d like to have an ability to hold Opt/Alt or Shift and delete these chips with a click. An ability to 'wipe the row' )at least with a panel’s menu command) would be great as well.

There is a second related request, about pinning a chip, so it can use the other modifier — http://illustrator.uservoice.com/forums/333657/suggestions/50279430