On the color wheel, analogous colors are neighbors, sitting right next to each other. Think of red and orange, yellow and green, or blue and purple.

Complementary colors live on opposite sides of the color wheel. Imagine red and green, blue and orange, or yellow and purple. Or move a half step over on the wheel, and combine a yellow-green color ...

Red and yellow and pink and green Purple and orange and blue, I can sing a rainbow, Sing a rainbow, Sing a rainbow too. Red and yellow and pink and green Purple and orange and blue, I can sing a ...

You can use a prism to split (or disperse) white light into a spectrum of colours: red, orange, yellow, green, blue, indigo and violet. Dispersed means that the colours are separated out.