Can I say sheer sky? [closed]

Can I say "sheer sky" to describe absolute sky? Does this sound right? Any help is really appreciated.


Gngram says it exists,

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but in comparison with sheer blue, it is rarely used. sky is not very compatible with degrees of intensity, so the phrase is uncommon. However, it really depends on your context. I am sure there can be circumstances when you can use it, for poetic purposes, or even in colloquial language.