The flag of Estonia consists of three horizontal stripes of equal width. The colors and their respective hex color codes are:

1. Blue (top stripe): #002395
2. Black (middle stripe): #000000
3. White (bottom stripe): #FFFFFF

The aspect ratio of the flag is 7:11, meaning its width is 1.57 times its height. As for measurements, if the flag's height is taken as "h," then the width will be "1.57h." Each stripe has a height of "h/3."