I don't fish a ton
of crankbaits, but my favorite color patterns are Firetiger, Silver (not chrome), and maybe a yellow Perch pattern. Bluegill imitators are also good.
For Lipless Crankbaits, I like Firetiger, Gold and Chrome
For minnow shaped baits, like a Rapala, I prefer Gold. Period
As for crawfish in CT, yes, there is an abundance of them in just about every lake! They are mostly greenish brown. At times they may have a hint of orange to them, but not much from what I've seen.
By the way @NickT
Welcome to the site
Glad to have you here with us