ultrafacts:

Why do most minifigures have a yellow skin color?

“We chose yellow to avoid assigning a specific ethnicity in sets that don’t include any specific characters. With this neutral color, fans can assign their own individual roles to LEGO minifigures. In some sets, such as movie themed ones, we want to represent the characters as authentically as possible. Some figures included will therefore be represented in different ethnic roles to stay true to their characterization.”

From LEGO: [x]

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