### Instruction:
Which of the following are not colors of the rainbow spectrum?  Purple, Blue, Aqua, Orange, Black, Violet, Pink

### Response:
The colors of the rainbow spectrum are typically referenced using the acronym ROYGBIV: Red, Orange, Yellow, Green, Blue, Indigo & Violet. From the prior list, the colors that are not part of the rainbow spectrum are Purple, Aqua, Black and Pink.