Positive associations: Sunshine, optimism, clarity, warmth, happiness, positivity, creativity, extravert
Negative implications: Irrational, fear, caution anxiety, frustration, cowardice
"Yellow is widely considered a cheerful hue, but too much yellow can also trigger feelings of anger, frustration, fear, and anxiety. This is because it’s the most difficult color to take in. It’s enough to make babies cry in some studies.
Yellow has been shown to increase metabolism, and can lift self-esteem when utilized correctly. Because it has a relatively long wavelength, it is the most visible color; it’s stimulating and attention-grabbing. Traffic signs, advertisements, legal pads, and certain warning labels take advantage of this fact.” (1)