Look-alikes · Colombia · Chad
Colombia vs Chad
The same colours, turned the other way. Colombia was measured as horizontal bands, Chad as vertical bands.
The tiles put them 71% apart, which is further than the 68% of a typical pair. A measurement answers whether two pictures match. People mix these two up because the colours do.
Where the difference is
Each colour on Colombia, matched with the nearest colour on Chad, and how far apart the two are, the number is the worst single tile, out of 255.
- #ffcd00#fecb002
- #003087#00266435
- #c8102e#c60c304
The colour that separates them is a blue: #003087 against #002664, 35 apart.
How they are put together
Nothing about how they are built was measured the same on both.
Only Colombia: horizontal bands. Only Chad: vertical bands.
Colombia runs yellow, blue and red from the top. Chad runs blue, yellow and red from the pole.
Both are flown at the same shape, 1.50 : 1.
What each one carries
Neither carries a charge. The difference is all colour and shape.
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 Colombia and Chad score 181.3 out of 255, which is the 71% 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.