Do you want to know the story behind this flag?

Niue. Warm, tropical yellow, and the Union Jack is spiced up with some stars.

I hate national flags.

First, I should note that my preferences for a flag are for them to be a compromise between having relatively simple designs and being memorable. So a lot of flags that other people like don't tickle my fancy,

This is the Republic of Congo's flag. I like how this is one of the relatively few countries that goes for the "Diagonal Tricolor" look. I also appreciate the color choices. Red, Yellow, and Green are striking color, each have a symbolic reason to be there (Green Forests, Yellow Friendship, and Red for their period aas a Communist country), and together represent the Pan-African movement.

hmm, lemme see...

I find South Korea real pretty;

I wonder why so many flags are blue, white and red. Especially the western countries seem to like those colors.

neat thread, you should make one for national anthems, as well

Jamaica, Belgium and North Korea's are pretty sick.

Red and blue, sorry, purple and marine, were considered royal and powerful (hence why heraldric symbols like lions and griffins are most often red - unless they're gold). The reason for the white, sorry, silver in between is because on the rules of heraldry no two colors or two metals (silver for white and gold for yellow, some tried to bend that rule with copper for red to make it fit) were allowed to touch each other, hence all those color-silver-color or color-gold-color designs.

And for why especially red, blue and white, well that's mostly due to the tricolore from the french revolution symbolizing democracy in the 19th and early 20th century