Depends on the flavor of gray. "Gray" strikes me (personally) as standard American English for the neutral color between black and white. "Grey," on the other hand, has a more British and/or old-fashioned tone to it, making it more suitable to poetic or intentionally archaic uses of the word
Examples: This car is gunmetal gray. My dog looks like a gray dustbunny.
vs.
In the wretched grey depths of grey melancholy, yea, in the dank dark depths of my danky doom do the grey storm clouds gather greyly.
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Date: 2004-03-08 12:49 pm (UTC)Examples:
This car is gunmetal gray.
My dog looks like a gray dustbunny.
vs.
In the wretched grey depths of grey melancholy, yea, in the dank dark depths of my danky doom do the grey storm clouds gather greyly.
(I stopped writing poetry at 15. Can you tell?)