Which do you use?
Both and I am SO unsure of which is correct. Is there different spelling for different useage?
" I’m feeling gray today".
" My beard is shot through with grey. "
??
Cartooniverse
I thought (without looking it up anywhere) that grey was the British spelling and gray was the U.S. spelling?
So, in Canada we use both, naturally.
Both spellings are considered correct. Dictionary.com and Merriam Webster online use them interchangebly. I tend to spell it with the E but don’t correct myself if I use the A.
I tend to use ‘grey’. It’s not a big deal if I don’t, though.
Grey. It just looks better.
Grey.
I tend to use gray, simply because it’s closer phonetically, at least in my mind, and I tend to spell phonetically.
I like grey better because it looks better, and makes me think of nicer shades than gray does. Gray just seems like an uglier color than grey. Gray concrete, but grey mist.
I generally use “grey”, but because I love anagrams, I think Gary Gray is one of the coolest names in existence.
How did you do that? You said exactly what I was thinking, but better!
I usually use gray when writing.
Whenever I read them, though, I always feel that grey is nice and soft, like mist or a little kitten. Gray is bold, hard and strong, like a granite wall or a battleship. (I realize this is in my head, and not actual usage.)
I tend to use gray but for some reason I agree with your sentiment. Why is that? Somehow gray seems to be a dirtier color for me than grey. I don’t know why.
I (fairly obviously) use gray 
Grey here. I’m actually quite surprised at the results so far. Like Leaffan, I’d always thought it was an American vs. British spelling thing, but it looks like there are quite a few American 'grey’s here.
For me, grey is the colour, gray is the name
Same here. Gray makes me think of concrete, grey is a dark cloud. I almost always use grey.
Interchangable.
I spell it it the same on any writting I do, so it’s not transitioning back and forth. I spell it however it’s spelled by the manufacturer, when sellecting a color.
The English/American distinction is correct – although, of course, it breaks down on surnames – Thomas Gray is a Brit, and Zane Grey is an American. 
Gray