The flag of Lithuania consists of three horizontal stripes of equal width. The top stripe is yellow (color code: #FDB913), the middle stripe is green (color code: #006A44), and the bottom stripe is red (color code: #C1272D). The aspect ratio of the flag is 3:5, meaning its width is 1.67 times its height. There are no specific geometric properties or measurements beyond the equal width of the stripes and the aspect ratio.