Definition : Two or more colors right next to each other on the color wheel

Explanation : Room 1- This is an example of an analogous color scheme because the colors used in the room are all next right by each other on the color wheel (green, yellow-green and blue green).
Room 2- This is an example of analogous color scheme because the room is done in red, red-orange and yellow orange as well as yellow. Colors all right next to each other on the color wheel.

Analogous