Noodlesoft has released Hazel 3.2 with improvements in how the file cleanup utility handles tags in OS X 10.9 Mavericks. The update enables you to add conditions based on Mavericks tags as well as create new actions to add or set tags. Hazel 3.2 also splits the “contain” operator for attributes that represented lists of items into two for more intuitive matching, stops using smart quotes in the Mavericks AppleScript editor (which created script errors), and fixes a crash when using the Kind picker. Hazel still enables you to match on and set color labels, despite the fact that Mavericks as replaced the old OS X color labels with tags. ($28 new, free update, 7.8 MB, release notes)
"Hazel still enables you to match on and set color labels, despite the fact that Mavericks as replaced the old OS X color labels with tags."
There are problems currently with tags and labels in Hazel although they will presumably get fixed as the developer works on this difficult transition. Colored tags cause a problem.