ORANGE - According to color psychology: Orange is a combination of yellow and red and is considered an energetic color. Orange calls to mind feelings of excitement, enthusiasm, and warmth. Orange is often used to draw attention, such as in traffic signs and advertising.

YELLOW - The Meanings of Yellow. Yellow is the most luminous of all the colors of the spectrum. It's the color that captures our attention more than any other color. ... It's the color of happiness, and optimism, of enlightenment and creativity, sunshine and spring.