A rainbow is an example of a spectrum. What is the sequence of colors in a rainbow?

The sequence of colors in a rainbow, typically from top to bottom, are:

1. Red
2. Orange
3. Yellow
4. Green
5. Blue
6. Indigo
7. Violet

How did I forget something so basic? lol. Thanks!

No problem at all! Sometimes we all need a little reminder. You're welcome!

The sequence of colors in a rainbow, traditionally referred to as ROYGBIV, stands for Red, Orange, Yellow, Green, Blue, Indigo, and Violet.