Maybe this will help you :)
CSS
div { width: 100%; height:900px; background: repeating-linear-gradient( -55deg, #3777BB, #3777BB 1px, #3072B8 1px, #3072B8 6px ); }
This is partially similar.
Demo

You can play with properties to suit your needs.
div { width: 100%; height:900px; background: repeating-linear-gradient( -40deg, #3777BB, #3777BB 1px, #3072B8 1px, #3072B8 4.9px ); }
Demo

Edit: Here you have more information about the repeating linear gradient.
The formal syntax is:
repeating-linear-gradient( [ <angle> | to <side-or-corner> ,]? <color-stop> [, <color-stop>]+ )
Additional Information
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