That’s what irritates me. It’s absolutely useless. Looking at this, if I didn’t know better I’d say that most countries have flags that are brown or purple (like you could assume with other ‘average’ stats). But no, that’s absolutely wrong. I don’t think any European country actually has those as a main color. This really doesn’t tell me anything useful about flags.

Tallying up individual colors and getting a mean or mode from that would be a lot better- I expect you’d get red or blue, but it would be an interesting distribution to see.