The flag of Lithuania consists of three horizontal stripes of equal size: the top stripe is yellow, the middle one is green, and the bottom stripe is red. The aspect ratio of the flag is 3:5. The exact color codes for the flag are:

• Yellow: Pantone 109 C / RGB 255, 211, 0 / HEX FF D3 00
• Green: Pantone 356 C / RGB 0, 163, 75 / HEX 00 A3 4B
• Red: Pantone 186 C / RGB 223, 0, 36 / HEX DF 00 24

The geometric properties and measurements of the flag are as follows:

• The width of the flag is three-fifths (or 60%) of its length.
• The height of each stripe is one-third (or 33.3%) of the total height of the flag.
• The distance between the top and middle stripes and the middle and bottom stripes is equal to the height of the yellow stripe.

The flag has no additional elements, such as a coat of arms or other symbols.