Blackish is getting unwarranted criticisms. The mom is mixed and they let you know she is rather than pretend she isn't unlike many other shows.
However, the kids and the extended family are unambiguously black
The lightest kid is the son, whereas the girls are undoubtedly black (which is rare these day) with the youngest daughter being the darkest (which is again very rare) and the younger boy is typical brown shade.
Y'all attacking a rare show today which represents black excellence; simply cutting off your nose to spite your face.