And not even the same definitions nation-to-nation either.They definitely have different definitions for color, class and race.
Try to apply these to the American system and you see these inconsistencies.
Mexico, Brazil, Dominican Republic, Columbia, Puerto Rico all gonna have different ideas of what skin color means, who is white and who is black and who is biracial and where that puts you in society.
People saying "Hispanics are the new Italians" are partly right, but they gotta see that SOME Hispanics become White. Not all and probably not even most.