The human eye can see 7,000,000 different colors. Color affects your purchase decisions as much as 90% for specific products.
Hue is about color and its corresponding name. Value is about tint and shade, how light or dark color is and Chroma is about the intensity, saturation of the color.
Colors can be perceived differently by different cultures.
Colors have corresponding meanings:
Yellow: Optimism, clarity, warmth
Orange: Friendly, cheerful, confidence
Red: Excitement, youthful, bold
Purple: Creative, imaginitive, wise
Blue: Trust, dependable, strength
Green: Peaceful, growth, health
Grey: Balance, neutral, calm