I am trying to create this same background. What would be the best and quickest way to do it? I need the exact colors too but unsure what they are...
I would explore Gradient, and construct one from darker blue to either white, or very light blue, and then to darker blue.
If you create a Gradient Laye along the top half you can move the Color Stops and pick the Colors from the image directly.
I’m not sure it is a Linear Gradient, though.
Edit: And once it fits (more or less) delete the Layer Mask.
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