Answer:
What do you call a fish with no eye?
I am pronounced as one letter written with three. I come in blue black brown or grey. Reverse me and I read the same either way.
What gets whiter the dirtier it gets?
What is black when you buy it, red when you use it, and gray when you throw it away?
Upon your lonely journey I accompany you, whether you travel through endless mountains or seas of blue. Wherever you go, I keep your place. Lost you're not, when I'm embraced. What am I?
The answer I give is yes, but what I mean is no. What was the question?