To be technically accurate, you should say they are Native American, or of mixed Native American and European ancestry (btw, the Spanish word for this is “mestizo” which means mixed).
I’m aware that nobody actually says this in real life, but this is what people in the US usually mean when they think of “typical Latino-looking person”.
In reality though, “Latino” is not a very precise way to describe someone with that phenotype, because just like Canada and the US and other countries with a major history of colonialism, there are people of all racial ancestries in Latin America. This is largely ignored in the Western US, I suspect because most of the “Latino” people there are from Mexico and Central America, where most of the population looks like what you describe.
But Latin America started out with all the same major groups that the US did: Native Americans, European settlers, African slaves, Asian immigrants, etc., and so you would expect to find all the same ancestries there as you would in the US, just in different proportions.
And indeed, in places like Uruguay and Argentina, the majority of people would be considered “white” according to US racial classification norms. In the Caribbean, many would be considered “black”. In Brazil there are a lot of people of Japanese descent.
But even in Mexico there are people who look like this: https://specials-images.forbesimg.com/imageserve/5b147c3d4bb...
That guy is Mexican and Latino and Hispanic by any possible definition of those terms, and also “white” (I.e., of primarily Western European ancestry).
The point is: “Latino” and “Hispanic” are not directly connected to phenotypes or biological ancestry in the way you are assuming.
In general I don’t understand why it is so important to describe people by their ancestry, as opposed to their actual culture. If you see a white person in India you can be 99.99% sure they are not culturally Indian, but you can’t really conclude anything similar in the US.
