Look-alikes · Spain · Hong Kong
Spain vs Hong Kong
Two copies of one picture are 0% apart and the widest pair in the world is 100%.
Spain and Hong Kong are 27% apart. They are closer than 99% of the flag pairs in the world.
Where the difference is
Each colour on Spain, matched with the nearest colour on Hong Kong, and how far apart the two are, the number is the worst single tile, out of 255.
- #ad1519#ee1c2565
- #fabd00#ffffff255
The colour that separates them is yellow against white: #fabd00 against #ffffff, 255 apart.
How they are put together
Nothing about how they are built was measured the same on both.
Only Spain: horizontal bands. Only Hong Kong: a single-coloured ground.
What each one carries
Spain carries a coat of arms. Hong Kong carries a star and a flower.
How the number was arrived at
Both flags are drawn at 64×48 and cut into squares 8 across. Each square is averaged to one colour, and the score is the worst single square, so two flags that agree everywhere except one corner are as far apart as that corner, which is the right answer to a question about whether anybody could tell them apart. 0 is the same picture; the number is the worst single tile, out of 255.
On that scale Spain and Hong Kong score 70 out of 255, which is the 27% above.
It cannot see everything. Both flags are stretched to the same box, so Indonesia and Monaco, which differ in nothing else, are measured as their reds rather than as identical. The look-alikes page sets out the rest.
Also close
The flags the pipeline measured nearest to these two.