Color TV

Two Jews come to Rabbi. The first one asks:
- Rabbi, WHITE is a color, isn't it?
Rabbi say:
- Wait, I need to find the answer in Torah.
He opens Torah, reads it for half an hour and says:
- Yes, WHITE is a color.
- Ok. Then, Rabbi, BLACK is a color, isn't it?
Rabbi say:
- Wait, I need to find the answer in Torah.
He opens Torah, reads it for half an hour and says:
- Yes, BLACK is a color.
The first one turns to the second and says:
- So why do you complain that I sold you not color TV set?