Gold, named after the precious metal, is the color of luxury, success, achievement, and triumph. It is closely related to royalty, wealth, and, of course, money. Gold can also be friendly and childlike depending on how you apply it and which colors you pair it with--take coral and seafoam, for example.
Like most orange and yellow hues, gold works well with colors found in nature like greens and blues. In design, it's often paired with black for a dramatic and luxurious feel. This color combo is widely used in print where techniques like foil stamping further accentuate the vibe.