Multiracial Americans
A typical Latino American family may have members with a wide range of racial phenotypes, meaning a Hispanic couple may have children who look white and African and/or Native American and/or Asian. Latino Americans have several self-identifications; most Latinos identify as white in terms of race, while others identify as black and/or Native American and/or Asian. Latinos who do not want to identify as one of those identify simply as Hispanic and/or "some other race" as their race.
White Latin Americans
For these reasons the distinction between "white" and "mixed", and between "mixed" and "black" and "indigenous", is largely subjective and situational, meaning that any attempt to classify by discrete racial categories is fraught with problems.