Redbone. Redbone is a person with red undertones in their skin. A person who is a yellow bone has yellow undertones in their skin. If you look closely at their skin you can see the differences.A redbone can be a light-skinned african american or a person of mixed races meaning they have African American in them...mixed with other's ethnic races! person who is a yellow bone has yellow undertones in their skin. If you look closely at their skin you can see the differences. A redbone can be a light-skinned african american or a person of mixed races meaning they have African American in them...mixed with other's ethnic races!