How to make the same gradient?

Question

css

I'll clarify the question.
Such a gradient can be done quite easily in css, but there is one problem.
Many layers come out, here about 6-8.
Of course, in order to change the color, you have to spend some time on parsing .. The
question is, can it be somehow different?
Approximately somehow it turns out like this , only there are many more lines.

Answer 1

Take a photo of a similar color scheme, blur it in Photoshop to the desired effect and make a mirror copy horizontally. Programmatically unlikely to succeed.

Answer 2

This is an image, not a gradient.