Like Pale Duck Egg Blue?

http://www.myperfectcolor.com/Blue-Green...

Maybe Eau de Nil? It's a very widely used colour, and should be available in all kinds of paint

http://www.lauraashley.com/uk/paints/wat...

Take that picture to your local paint store. Hold paint swatches up to it.

I think it's kind of bluish, like a very light blue

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