The flag of Kaluga Oblast, Russia, is a horizontal tricolour of red, white, and blue, with width of the stripes 5:2:5, charged with a golden imperial crown in the middle of the red stripe.
The flag of Kaluga Oblast, Russia, is a horizontal tricolour of red, white, and blue, with width of the stripes 5:2:5, charged with a golden imperial crown in the middle of the red stripe.