Yes, the old "black of the night" I did leave that one out and I totally forgot about the Black Sea.  You are absolutely correct about bleaching now, but back in the day of when the term "black sheep" came about they were still spinning wool and cotton on those little old hand spun or foot powered spinning wheels I am not sure if bleach had even been invented then.
I think grey is  sorta bad, people seem to use the term "grey area " on things , especially law makers and judges.  But I can't offer an opinion beige, never really hear that word except when actually describing the color of carpet.
Using the FBomb sometimes  is mandatory like in a quote, It would not be an actual quote if you didn't use the exact words.  Then you have to preface the sentence with something like, " Joe was really angry and he said something like .... blah blahblah. " So using it in an exact quote had to feel right for you because you understand the meaning of quote. I am sure it will work fine, it is not like you use it like some old drunken sailor and every other word out of mouth is the FBomb.  Of course that might have been a different story if it wasn't for the damn bow and arrow.
You ain't gonna drag a remark from me on the JC using it but he did hang with some shady folks from what I have read but when it gets right down to everyone who ever lived could be a little shady in some way.