1 Make a new document 200x200.
2 Press D, to reset your colors.
3 Filter> Render> Clouds.
4 Filter> Pixelate> Mezzotint (Medium strokes).
5 Filter> Blur> Motion Blur (Angle: 0 Distance: 999).
6 Image> Rotate Canvas> 90 CW.
7 Filter> Distort> Polar Coordinates ("Rectangular to Polar").
8 Press Ctrl + U, check "Colorize" and get your color.
Picture